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TZID:Europe/Paris
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DTSTART:20250330T010000
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DTSTART:20260329T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260126T110000
DTEND;TZID=Europe/Paris:20260126T120000
DTSTAMP:20260404T142757
CREATED:20260123T152423Z
LAST-MODIFIED:20260124T031309Z
UID:10000017-1769425200-1769428800@sfp-alpes.fr
SUMMARY:Jean CAPPELLO (Institut Lumière Matière\, Lyon)
DESCRIPTION:Transport of beads\, bubbles and droplets in cylindrical microchannel : The role of inertia and deformations\nAbstract : \nWhen transported in microchannels at intermediate Reynolds number\, beads\, droplets or bubbles show interesting dynamics such as lateral migration. For rigid beads this migration is solely induced by inertial forces which lead to lateral motion of the particle until it reaches an equilibrium uncentered position in the microchannel. Transport of deformable objects as droplets or bubbles is even richer as the coupling between deformation and the external flow results in another lateral migration force whose orientation depends on the viscosity ratio of the two phases. I will present a study in which we investigate\, both experimentally and numerically\, the velocity and lateral position of beads\, droplets and bubbles transported in a cylindrical pipe. By varying the object size\, the viscosity ratio\, the density\, the Reynolds number and the capillary number\, we offer an exhaustive parametric study exploring various dynamics from the non-deformable viscous regime to the deformable inertial regime\, thus enabling us to highlight the sole and combined roles of inertia and capillary effects on lateral migration. Then\, focusing on the specific case of bubbles\, we further identify an intriguing regime at large deformations in which bubbles travel faster than the maximum velocity of the carrier flow. We rationalize this behavior in the limit of large bubbles and show that it originates from a reduction of the hydraulic resistance of the multiphase system. Finally\, we determine the key parameters governing the onset of this “superfast” regime and demonstrate that it occurs only within a limited range of capillary and Reynolds numbers. \nContact : elise.lorenceau@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/transport-of-beads-bubbles-and-droplets-in-cylindrical-microchannel-the-role-of-inertia-and-deformations/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260127T103000
DTEND;TZID=Europe/Paris:20260127T113000
DTSTAMP:20260404T142757
CREATED:20260123T154556Z
LAST-MODIFIED:20260124T031428Z
UID:10000018-1769509800-1769513400@sfp-alpes.fr
SUMMARY:Juan FONTECILLA-CAMPS (IBS / Groupe Métalloprotéines)
DESCRIPTION:Exaptation : la composante opportuniste de l’évolution et de la sélection naturelle\nRésumé : \nLa variété et la capacité fonctionnelle des êtres vivants ont toujours intrigué les biologistes. Le philosophe grec Aristote était\, il y a plus de 2300 ans\, le premier à classifier les animaux selon la couleur de leur sang. Il croyait aussi que les mêmes animaux avaient existé\, immuables\, depuis une éternité. Il a fallu attendre le XIXe siècle pour que Charles Darwin explique l’évolution des espèces par la sélection naturelle. Cette évolution peut paraître linéaire et\, pour certains\, elle aurait un but (téléologie). Mais pour les évolutionnistes il n’y pas de plan ni de finalité. Un des résultats fondamentaux de la sélection naturelle est l’adaptation ; une fois qu’un organe est devenu utile\, les mutations aléatoires qui améliorent sa fonction seront sélectionnées parce qu’elles sont avantageuses. Mais la sélection naturelle opère aussi de manière opportuniste\, et un organe donné peut se transformer pour remplir une fonction complètement différente de celle d’origine ; c’est l’exaptation. Un cas classique est la transformation d’écailles de dinosaures en plumes d’oiseaux. Pendant mon séminaire je vais illustrer plusieurs cas d’exaptation biologique\, et discuter aussi l’exaptation culturelle. \nContact : ibs.seminaires@ibs.fr \n  \n 
URL:https://sfp-alpes.fr/event/exaptation-la-composante-opportuniste-de-levolution-et-de-la-selection-naturelle/
LOCATION:IBS\, 71 avenue des Martyrs\, Grenoble
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260127T110000
DTEND;TZID=Europe/Paris:20260127T120000
DTSTAMP:20260404T142757
CREATED:20260123T161211Z
LAST-MODIFIED:20260124T031619Z
UID:10000019-1769511600-1769515200@sfp-alpes.fr
SUMMARY:Nidia MALDONADO CARMONA (University of Florence\, Italy)
DESCRIPTION:Bringing light to pathogens : light-driven strategies for disinfection of pathogens\nAbstract : \nThe emergence of antimicrobial resistance has prompted the search for new strategies\, aiming to find more efficient ways to kill microbial pathogens. In this sense\, Photodynamic Antimicrobial ChemoTherapy (PACT) uses a combination of light\, oxygen and a photosensitizer molecule to produce lethal reactive oxygen species\, which have demonstrated to be highly effective against microorganisms and even against multiresistant microorganisms. During this talk\, I will address the different challenges that surround the field\, ranging from an efficient delivery of photosensitizers using natural biopolymers\, while also addressing the delivery of light into a clinical scenario model\, addressing the difficulties of biological experiments with\ntwo-variables to juggle with\, technical challenges that hinder the application of this technique into the clinic. \nContact : appaixfl@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/bringing-light-to-pathogens-light-driven-strategies-for-disinfection-of-pathogens/
LOCATION:IAB – Salle de séminaire\, IAB Site Santé - Allée des Alpes\, La Tronche\, 38700\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IAB":MAILTO:appaixfl@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260128T110000
DTEND;TZID=Europe/Paris:20260128T120000
DTSTAMP:20260404T142757
CREATED:20260123T162130Z
LAST-MODIFIED:20260124T031950Z
UID:10000020-1769598000-1769601600@sfp-alpes.fr
SUMMARY:Juan POLO (Technology Innovation Institute\, Abu Dhabi)
DESCRIPTION:Static impurity in a mesoscopic system of SU(N) fermionic matter-wavesJuan POLO \nAbstract : \nWe investigate the effects of a static impurity\, modeled by a localized barrier\, in a one-dimensional mesoscopic system comprised of strongly correlated repulsive SU(N)-symmetric fermions. For a mesoscopic sized ring under the effect of an artificial gauge field\, we analyze the particle density and the current flowing through the impurity at varying interaction strength\, barrier height and number of components. We find a non-monotonic behaviour of the persistent current\, due to the competition between the screening of the impurity\, quantum fluctuations\, and the phenomenon of fractionalization\, a signature trait of SU(N) fermionic matter-waves in mesoscopic ring potentials. This is also highlighted in the particle density at the impurity site. We show that the impurity opens a gap in the energy spectrum selectively\, constrained by the total effective spin and interaction. Our findings hold significance for the fundamental understanding of the localized impurity problem and its potential applications for sensing and interferometry in quantum technology. \nContact : pierre.nataf@lpmmc.cnrs.fr
URL:https://sfp-alpes.fr/event/static-impurity-in-a-mesoscopic-system-of-sun-fermionic-matter-waves/
LOCATION:LPMMC – salle Roger Maynard (G421)\, CNRS - LPMMC 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260128T110000
DTEND;TZID=Europe/Paris:20260128T120000
DTSTAMP:20260404T142757
CREATED:20260124T010421Z
LAST-MODIFIED:20260124T012948Z
UID:10000021-1769598000-1769601600@sfp-alpes.fr
SUMMARY:Giovanni FINOCCHIO (University of Messina\, Italy)
DESCRIPTION:Adaptive Ising Machines : a paradigm combining oscillatory dynamics and probabilistic sampling\nRésumé : \nThe first part of the talk will focus on probabilistic computing which is one direction to implement Ising Machines with Probabilistic computing that is a computational paradigm using probabilistic bits (p-bits)\, unit in the middle between standard bit and q-bits. I will show how to map hard combinatorial optimization problems (Max-Sat\, Max-Cut\, etc) into Ising machine and how to implement those in spintronic technology. I will present new directions in this field considering the concept of extended probabilistic variables such as p-dit and p-int. I will then discuss oscillatory Ising Machines dynamics with the aim of introducing the concept of Adaptive Ising Machines. For doing that\, first I will discuss the universal theory of phase auto-oscillators driven by a bi-harmonic signal (having frequency components close to single and double of the free-running oscillator frequency) with noise showing how deterministic phase locking and stochastic phase slips can be continuously tuned by varying the relative amplitudes and frequencies of the driving components. I will then focus on how to use spin-torque nano-oscillators for implementing deterministic\, probabilistic computing and dual-mode operation of Adaptive Ising Machines that dynamically combines both regimes within the same hardware platform by properly tuning noise strength and a bi-harmonic excitation. Benchmarking on different classes of combinatorial optimization problems\, the CoIM exhibits complementary performance as compared to OIMs and probabilistic Ising machines PIMs\, with adaptability to the specific problem class. This work introduces the first oscillator-based Ising machine capable of transitioning between deterministic and probabilistic computation\, opening a path toward scalable\, CMOS-compatible hardware for hybrid optimization and inference. This work was supported under the project number 101070287 — SWAN-on-chip — HORIZON-CL4-2021-DIGITAL-EMERGING-01\, the project PRIN 2020LWPKH7 funded by the Italian Ministry of University and Research and by the PETASPIN association (www.petaspin.com) and it has been also funded by European Union (NextGeneration EU)\, through the MUR-PNRR project SAMOTHRACE (ECS00000022). \nContact : admin.spintec@cea.fr
URL:https://sfp-alpes.fr/event/adaptive-ising-machines-a-paradigm-combining-oscillatory-dynamics-and-probabilistic-sampling/
LOCATION:CEA – Salle de Séminaire IRIG (1005 – 445)\, Laboratoire Irig/Spintec\, salle de séminaire 445\, bâtiment 1005\, CEA-Grenoble\, Grenoble
CATEGORIES:Séminaire
ORGANIZER;CN="IRIG - CEA":MAILTO:odile.rossignol@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260130T110000
DTEND;TZID=Europe/Paris:20260130T120000
DTSTAMP:20260404T142757
CREATED:20260123T171105Z
LAST-MODIFIED:20260124T032613Z
UID:10000022-1769770800-1769774400@sfp-alpes.fr
SUMMARY:Félix PALM (Université Libre de Bruxelles)
DESCRIPTION:Quantum Hall states in optical lattices : Revealing hidden long-range\nAbstract : \nThe study of interacting quantum Hall states and their exotic anyonic excitations poses a major challenge in current experimental and theoretical research. Quantum simulators\, in particular cold atoms in optical lattices\, provide a promising platform to realize\, manipulate\, and understand such systems with unprecedented control. In this talk\, I will discuss how the local resolution of quantum gas microscopes extends the toolbox of quantum Hall physics. To this end\, I will discuss a fundamental question regarding the topological order of quantum Hall states: the speculated condensation of composite bosons exhibiting quasi long-range order. I will exemplify this mechanism in bosonic [1] and fermionic [2] systems and touch upon its detectability in tensor network simulations and quantum gas microscopes. If time permits\, I will also touch upon the interplay of spin and charge in fermionic quantum Hall states\, resulting in ferromagnetism and skyrmionic spin-textures [2\,3]. Again\, I will present signatures to identify these states in cold-atom quantum simulators. References : [1] Pauw et al.\, Detecting Hidden Order in Fractional Chern Insulators; PRR 6 (2024)  [2] Pauw et al.\, From hidden order to skyrmions: Quantum Hall states in an extended Hofstadter-Fermi-Hubbard model; arXiv:2509.12184 (2025)  [3] Palm et al.\, Ferromagnetism and skyrmions in the Hofstadter–Fermi–Hubbard model; NJP 25 (2023) Contact : cecile.repellin@lpmmc.cnrs.fr
URL:https://sfp-alpes.fr/event/quantum-hall-states-in-optical-lattices-revealing-hidden-long-range-order/
LOCATION:LPMMC – salle Roger Maynard (G421)\, CNRS - LPMMC 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260202T110000
DTEND;TZID=Europe/Paris:20260202T120000
DTSTAMP:20260404T142757
CREATED:20260129T120516Z
LAST-MODIFIED:20260130T141207Z
UID:10000035-1770030000-1770033600@sfp-alpes.fr
SUMMARY:Sara MATYAS (CNRS Innovation)
DESCRIPTION:Continuum des financements des projets de valorisation\nRésumé : \nLes financements de valorisation sont nombreux\, chacun avec ses guichets\, ses règles et ses critères… Et si on éclaircissait ce sujet ensemble ? À partir d’exemples concrets\, nous parcourrons les différents chemins possibles pour valoriser un projet de recherche\, depuis l’idée fondamentale jusqu’à sa valorisation. Vous verrez que la start‑up n’est qu’une option parmi d’autres. L’objectif : décoder clairement les informations essentielles à retenir pour chaque type de financement et comprendre la dynamique du continuum (Pré‑maturation CNRS\, Pré‑maturation PUI\, Maturation SATT\, programme RISE\, BTF Lab\, Incubation\, Transfert\, Licensing…). \nContact : bahram.houchmandzadeh@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/continuum-des-financements-des-projets-de-valorisation/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260203T140000
DTEND;TZID=Europe/Paris:20260203T150000
DTSTAMP:20260404T142757
CREATED:20260124T033007Z
LAST-MODIFIED:20260124T033150Z
UID:10000023-1770127200-1770130800@sfp-alpes.fr
SUMMARY:Mandar M. DESHMUKH (Tata Institute of Fundamental Research\, India)
DESCRIPTION:2D van der Waals Josephson devices\nRésumé : \nI will discuss two classes of Josephson devices. First\, proximitized graphene-based Josephson junctions that are gate tunable. The graphene Josephson FET enables a quantum-noise-limited parametric amplifier with performance comparable to the best discrete amplifiers in this class [1]. One can realize extremely sensitive and fast bolometers [2] – useful for dark matter search\, among other applications. Second\, twisted van der Waals heterostructures based on the high-temperature superconductor Bi2Sr2CaCu2O8 et δ enable the realization of a high-temperature Josephson diode [3] for the first time. Such Josephson diodes offer an opportunity to realize new devices at liquid nitrogen temperatures. While opportunities abound with vdW JJs\, the challenge of scalability must be overcome to translate them into real-world devices. \nReferences : \n[1] « Quantum-noise-limited microwave amplification using a graphene Josephson junction » Joydip Sarkar et al. \, Nature Nanotechnology 17\, 1147 (2022).  \n[2] “ Kerr non-linearity enhances the response of a graphene Josephson bolometer\,” Sarkar et al. \, Nature Communications volume 16\, 7043 (2025).  \n[3] « High-temperature Josephson diode\, » Sanat Ghosh et al. Nature Materials 23\, 612 (2024). \n  \nContact : equipe-seminaires-nano@listes.grenoble.cnrs.fr
URL:https://sfp-alpes.fr/event/mandar-m-deshmukh-tata-institute-of-fundamental-research-india/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260203T170000
DTEND;TZID=Europe/Paris:20260203T183000
DTSTAMP:20260404T142757
CREATED:20260124T033738Z
LAST-MODIFIED:20260124T033738Z
UID:10000026-1770138000-1770143400@sfp-alpes.fr
SUMMARY:W. John KAO (Président de l’Université NTHU de Taïwan)
DESCRIPTION:Geopolitical and strategic challenges in the semiconductor sector comparative perspectives from NTHU and UGA\nLes semi-conducteurs sont aujourd’hui au cœur de la transformation numérique et industrielle mondiale\, soulevant des défis majeurs de souveraineté technologique\, de compétitivité économique et de sécurité stratégique. Taïwan occupe dans ce contexte une place absolument centrale\, tant par son excellence industrielle que par la densité de ses écosystèmes de recherche\, de formation et d’innovation\, au premier rang desquels figure Hsinchu\, véritable épicentre taïwanais des semi-conducteurs. De son côté\, Grenoble Alpes\, véritable hub de la microélectronique et silicon valley européenne\, concentre près d’un quart des emplois français de la filière et abrite de nombreux laboratoires de pointe\, soulignant son rôle stratégique à différentes échelles. La présence du Professeur Kao\, Président de la NTHU – université de référence mondiale dans ce domaine – apporte un éclairage unique et de tout premier plan sur ces enjeux majeurs. \nCette conférence\, d’une durée d’une heure et en langue anglaise\, sera animée par la maîtresse de cérémonie\, Dr Pauline Ravinet\, attachée scientifique et universitaire à l’Office français à Taipei. Elle comprendra une brève présentation de la part de W. John Kao\, suivie d’un échange avec Yassine Lakhnech\, Président de l’UGA\, puis d’une session de questions-réponses avec le public. \nGratuit\, sur Réservation \nContact : lou.boucard-pra@unvi-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/w-john-kao-president-de-luniversite-nthu-de-taiwan/
LOCATION:Grenoble INP – Auditorium\, UGA\, parvis Louis Néel\, 38000 Grenoble\, Grenoble\, 38000\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260205T080000
DTEND;TZID=Europe/Paris:20260205T100000
DTSTAMP:20260404T142757
CREATED:20260124T034254Z
LAST-MODIFIED:20260130T170445Z
UID:10000027-1770278400-1770285600@sfp-alpes.fr
SUMMARY:Claude RACINET (Académie Delphinale/RHEOP)
DESCRIPTION:Nous sommes tous des prématurés\nIntervention de Claude RACINET de l’Académie Delphinale et du Registre des Handicaps de l’Enfant et Observatoire Périnatal de l’Isère et de la Savoie  (RHEOP). \n  \nContact : sante-communication@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/claude-racinet-academie-delphinale-et-rheop/
LOCATION:CHU – Salle Gilbert Faure\, CHU Grenoble Alpes Pavillon Vercors (côté Belledonne)\, La Tronche\, 38043\, France
CATEGORIES:Séminaire
ORGANIZER;CN="CHU Grenoble":MAILTO:sante-communication@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260205T140000
DTEND;TZID=Europe/Paris:20260205T150000
DTSTAMP:20260404T142757
CREATED:20260129T152413Z
LAST-MODIFIED:20260129T152615Z
UID:10000036-1770300000-1770303600@sfp-alpes.fr
SUMMARY:Flavien MUSEUR (PSI / ETH Zurich)
DESCRIPTION:Artificial spin ice on the CaVO lattice : a bridge from square to kagome\nRésumé : \nArtificial spin ices are arrangements of dipolar-coupled nanomagnets\, with magnetic moments that behave like Ising spins as a result of shape anisotropy. They have been successfully implemented as platforms for imaging and controlling phase transitions in systems with long-range interactions [1]. However\, the exploration of thermally-activated phase transitions has been mostly focused on two lattices: the square and the kagome. Artificial square ice orders readily into an antiferromagnetic\, two-in/two-out ground state\, with a transition belonging to the Ising 2D universality class [2]. In contrast\, artificial kagome ice is highly frustrated and the predicted phase diagram is richer [3\, 4]. Upon lowering the temperature\, the system first experiences a crossover from a paramagnetic to a spin liquid state with no long range order\, then transitions into a Coulomb phase with charge crystallization. This is an example of magnetic moment fragmentation [5\, 6]\, in which each magnetic moment can be decomposed into the sum of a long-range ordered\, divergence-full fragment and a fluctuating\, divergence-free fragment which can be elegantly mapped to a dimer model. \nWe have carried out a comprehensive characterization of the thermodynamics of an artificial spin ice based on the CaVO (also called the square-octagon) lattice\, part of the family of Archimedean lattices [7]. We show that the magnetic interactions on the vertex level can be significantly tuned by changing the relative sizes of square and octagonal plaquettes\, while preserving the lattice constant and symmetries. This results in a complex phase diagram\, with two very different ground states and ordering processes separated by a multicritical region. Each bears strong similarities with either the square or kagome phenomenologies. We map out this phase diagram with Monte-Carlo simulations and magnetic force microscopy of as-grown configurations. Different spin liquid states can be observed\, as well as moment fragmentation for some geometries. Finally\, we perform temperature and field-dependant magnetometry measurements on a series of lattice geometries\, making it possible to detect thermally-active correlated phases without using large-scale instrumentation. Our work paves the way for engineering exotic magnetic properties at the mesoscale. By tuning frustration within a single lattice geometry\, we can design artificial systems that exhibit spin liquid and multicritical behaviours – something that\, in natural magnetic systems\, typically requires extremes of either pressure\, field or temperature. \n\nS. H. Skjærvø et al.\, Nature Reviews Physics 2\, 13–28 (2019).\nO. Sendetskyi et al.\, Physical Review B 99\, 214430 (2019).\nG. Möller and R. Moessner\, Physical Review B 80\, 140409 (2009).\nG.-W. Chern et al.\, Physical Review Letters 106\, 207202 (2011).\nM. E. Brooks-Bartlett et al.\, Physical Review X 4\, 011007 (2014).\nB. Canals et al.\, Nature Communications 7\, 11446 (2016).\nO. A. Starykh et al.\, Physical Review Letters 77\, 2558–2561 (1996).\n\nContact : elsa.lhotel@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/flavien-museur-psi-eth-zurich/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260206T103000
DTEND;TZID=Europe/Paris:20260206T123000
DTSTAMP:20260404T142757
CREATED:20260124T034725Z
LAST-MODIFIED:20260130T141434Z
UID:10000028-1770373800-1770381000@sfp-alpes.fr
SUMMARY:Doru C. LUPASCU (Institute for Materials Science and CENIDE - Faculty of Engineering\, University of Duisburg-Essen)
DESCRIPTION:Hyperfine Interactions as a Probe in Solids : The Example of a Multiferroic System : Bismuth Ferrite\nHyperfine interactions denote the coupling of the wave functions of nuclear states to the electronic shell of the atom. This coupling is a correction term to the energy of a nuclear state and equally so in reverse manner for the electronic shell of the atom. \nLike nuclear magnetic resonance or Mössbaer spectroscopy\, the nuclear perturbed gamma-gamma-angular correlation spectroscopy (PAC) investigates this energetic modification of the nuclear state. For sufficiently high nuclear spin value\, magnetic interactions as well as quadrupole interactions become accessible. The beauty of the method is its highly local character in the crystal lattice. It directly monitors fields at a particular lattice or defect site. Similar is true for molecules. \nBismuth ferrite is a perovskite crystal exhibiting magnetic and electric ordering phenomena. It is antiferromagnetic and a very good ferroelectric. We used several probe atoms that offer suitable nuclear gamma-gamma cascades to understand these two ordering phenomena in the identical crystal and their coupling. Different from the long term belief\, we proved that there is no magnetoelectric coupling in this crystal.\nThe presentation will introduce the measurement method\, and the material system and display how it can be used to investigate solids in a very local manner. \n— \nHanno Filter (College 3 Secretary) \nExternal visitors may ask for a site access to tellier(at)ill.fr \nZoom link : https://ill.zoom.us/j/98964195699?pwd=vPhNT17CAeoDUr7QX4PjfyPnWsHuMU.1 – Password : SeminarC3
URL:https://sfp-alpes.fr/event/doru-c-lupascu-institute-for-materials-science-and-cenide-faculty-of-engineering-university-of-duisburg-essen/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260206T110000
DTEND;TZID=Europe/Paris:20260206T120000
DTSTAMP:20260404T142757
CREATED:20260124T035020Z
LAST-MODIFIED:20260130T140553Z
UID:10000029-1770375600-1770379200@sfp-alpes.fr
SUMMARY:Kei YAMAMOTO (Advanced Science Research Center\, Japan)
DESCRIPTION:Spin-wave spectrum in a ferromagnetic disk\nAbstract : \nAngular momentum transfer in all forms contributes to the loss of information carried by dynamical spin polarisations and constitutes an important fundamental problem in spintronics. In this talk\, we present a detailed microwave spectrum measurement of magnetic excitations in an Yttrium Iron Garnet disk\, and how one can make sense of the multitudes of spectral lines and their magnetic field dependence theoretically. We explain how the axial symmetry of the setup leads to labelling of modes in terms of the conserved total angular momentum of the spin waves\, The frequency spectrum in the saturated state is compared to analytical solutions for pure exchange as well as pure dipolar models under certain limits where different types of spectral degeneracy occur. The experimental result shows splittings of those degenerate modes\, and we discuss possible interpretations in relation to angular momentum transfer between its different forms.\n​​\nMore information :https://www.spintec.fr/seminar-spin-wave-spectrum-in-a-ferromagnetic-disk/​​​\n​\nVisioconference :https://univ-grenoble-alpes-fr.zoom.us/j/98769867024?pwd=dXNnT3RMeThjYStybGVQSUN0TVdJdz09​​
URL:https://sfp-alpes.fr/event/kei-yamamoto-advanced-science-research-center-japan/
LOCATION:CEA – Salle de Séminaire IRIG (1005 – 445)\, Laboratoire Irig/Spintec\, salle de séminaire 445\, bâtiment 1005\, CEA-Grenoble\, Grenoble
CATEGORIES:Séminaire
ORGANIZER;CN="IRIG - CEA":MAILTO:odile.rossignol@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260206T110000
DTEND;TZID=Europe/Paris:20260206T120000
DTSTAMP:20260404T142757
CREATED:20260129T154158Z
LAST-MODIFIED:20260129T154158Z
UID:10000037-1770375600-1770379200@sfp-alpes.fr
SUMMARY:William FAUGNO (LKB / Collège de France)
DESCRIPTION:Quantum Many-Body Scars in the Presence of Density-Difference-Dependent Hopping\nRésumé : \nIt has been observed that isolated quantum systems often still produce measured values consistent with thermalization. This is unexpected due to the lack of a notion of chaos or ergodicity and the unitary dynamics of the quantum theory which is at its core linear. The conditions under which we can expect isolated quantum systems to thermalize were laid out in the eigenstate thermalization hypothesis (ETH)\, which has generally been found to hold in a variety of systems. Still\, notable violations of the ETH have been identified where a seemingly chaotic many-body quantum system exhibits some nonthermal behavior. In this talk\, I will introduce the concept of quantum many-body scars (QMBS)\, a phenomenon in which a small subset of eigenstates violates the ETH and promote nonthermal dynamics. I will then present theoretical results on a bosonic Hamiltonian with a density-dependent hopping and describe two distinct mechanisms for scar formation that arise in this model. These mechanisms provide insight into the conditions under which QMBS can be expected to occur. \nContact : serge.florens@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/william-faugno-lkb-college-de-france/
LOCATION:LPMMC – salle Roger Maynard (G421)\, CNRS - LPMMC 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260206T110000
DTEND;TZID=Europe/Paris:20260206T120000
DTSTAMP:20260404T142757
CREATED:20260129T162542Z
LAST-MODIFIED:20260130T141840Z
UID:10000040-1770375600-1770379200@sfp-alpes.fr
SUMMARY:David SKURNIK (Hôpital Necker- Enfants Malades\, Université Paris Cité)
DESCRIPTION:New approaches in vaccine development\nRésumé : \nHigh-throughput sequencing and particularly original applications such as the TnSeq allow a study of host-pathogen interaction at the full genome scale through a systematic analysis off all the virulence factors of a bacteria in a particular setting. For example\, all the genes important or essential for GI tract colonization of the selected pathogenic bacteria. \nThis allows to reveal new targets for vaccine development. Interestingly\, an ongoing adaptation of the TnSeq allows the systematic identification of these antigens of interest. We call this new technology : TnVaccine. \nContact : ibs.seminaires@ibs.fr
URL:https://sfp-alpes.fr/event/david-skurnik-hopital-necker-enfants-malades-universite-paris-cite/
LOCATION:IBS – Salle des séminaires\, IBS 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
ORGANIZER;CN="IBS":MAILTO:ibs.seminaires@ibs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260209T110000
DTEND;TZID=Europe/Paris:20260209T120000
DTSTAMP:20260404T142757
CREATED:20260129T155208Z
LAST-MODIFIED:20260130T142114Z
UID:10000038-1770634800-1770638400@sfp-alpes.fr
SUMMARY:Isidora ARAYA DAY (DIPC San Sebastian)
DESCRIPTION:Diagnosing higher order topological phases with electronic transport\nRésumé : \nUnlike a quantum Hall bar\, a higher-order topological insulator may not have edge modes that conduct\, but localized corner modes. These corner modes are robust to disorder and their appearance is diagnosed by a topological invariant that takes both onsite and spatial symmetries. In this talk\, I will introduce a scattering theory for detecting higher-order topological phases only from a sample’s Fermi level properties\, and will demonstrate how to apply it to different models. This theory provides an alternative approach for proving bulk–edge correspondence in intrinsic higher order topological phases\, especially in presence of disorder\, and it relies on the spectral flow that these phases show in the presence of magnetic flux. \nContact : serge.florens@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/isidora-araya-day-dipc-san-sebastian/
LOCATION:LPMMC – salle Roger Maynard (G421)\, CNRS - LPMMC 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260210T103000
DTEND;TZID=Europe/Paris:20260210T113000
DTSTAMP:20260404T142757
CREATED:20260205T153331Z
LAST-MODIFIED:20260205T153331Z
UID:10000051-1770719400-1770723000@sfp-alpes.fr
SUMMARY:Stéphanie ROCCIA (LPSC-CNRS/UGA\, Grenoble)
DESCRIPTION:The search for neutron electric dipole moment at PSI\nRésumé : \nThe Universe and its history are simultaneously very well understood and still a big mystery. We have amazing tools from satellites to\nobservatories to weight the universe over its history. But the components of the Universe can simply not yet be explained by physicists. To get the full picture\, we need to identify and understand the interactions at play throughout the life of the Universe. This is the meeting point between particle physics and cosmology. At this meeting point stands the neutron\, a common particle that we can uniquely use in high precision experiments.\nI will present how experiments searching for a permanent electric dipole moment of the neutron (nEDM) aim at discovering new sources of CP violation beyond the Standard Model of particle physics and understanding the origin of the matter-antimatter asymmetry of the Universe. The quest for the neutron electric dipole moment started more than sixty years ago. In recent experiments\, polarized ultra-cold neutrons are stored in material bottles.\nI will present the ongoing efforts at the Paul Scherrer Institute in Switzerland where the n2EDM spectrometer has taken the first “physics data” in 2025. A large fraction of this dataset is dedicated to measurements of the UCN spectrum. I will present the newest UCN spectroscopy techniques that were recently published and the reasons for the importance of a deep understanding of the UCN spectrum. \n— \nHanno Filter (College 3 Secretary) \nExternal visitors may ask for a site access to tellier(at)ill.fr \nZoom link : https://ill.zoom.us/j/98964195699?pwd=vPhNT17CAeoDUr7QX4PjfyPnWsHuMU.1 – Password : SeminarC3
URL:https://sfp-alpes.fr/event/stephanie-roccia-lpsc-cnrs-uga-grenoble/
LOCATION:ILL – Salle de Séminaire (110-111)\, ILL 50 71 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260212T130000
DTEND;TZID=Europe/Paris:20260212T140000
DTSTAMP:20260404T142757
CREATED:20260124T035658Z
LAST-MODIFIED:20260129T135753Z
UID:10000030-1770901200-1770904800@sfp-alpes.fr
SUMMARY:Delphine ROPERS (Inria – Grenoble)
DESCRIPTION:Computational analyses of bacterial mRNA decay\n  \nPlus d’informations : https://bi-gre.github.io/ \nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/delphine-ropers-inria-grenoble/
LOCATION:IMAG – Salle de Réunion\, 150 place du Torrent\, St Martin d’Hères\, 38400\, France
CATEGORIES:Séminaire
ORGANIZER;CN="TIMC - IMAG":MAILTO:lucie.lamothe@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260212T140000
DTEND;TZID=Europe/Paris:20260212T150000
DTSTAMP:20260404T142757
CREATED:20260130T094628Z
LAST-MODIFIED:20260130T102105Z
UID:10000042-1770904800-1770908400@sfp-alpes.fr
SUMMARY:Youngsuk KIM (Pusan National University\, Busan\, South Korea (visiting scientist @ DCM))
DESCRIPTION:Carbene–CS2 : Redox-active Radical Ligands\nContact : david.martin@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/youngsuk-kim-pusan-national-university-busan-south-korea-visiting-scientist-dcm/
LOCATION:DCM – Salle C209\, DCM - Bât Chimie Recherche 301 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260216T110000
DTEND;TZID=Europe/Paris:20260216T120000
DTSTAMP:20260404T142757
CREATED:20260212T154413Z
LAST-MODIFIED:20260212T154413Z
UID:10000058-1771239600-1771243200@sfp-alpes.fr
SUMMARY:Roxane LESTINI & Nicolas OLIVIER (Laboratoire d'Optique et Biosciences\, Palaiseau)
DESCRIPTION:Understanding DNA replication dynamics in the archaea Haloferax volcanii\nRésumé : \nArchaea provide a simplified yet highly informative model for deciphering the complex regulatory networks governing DNA replication and origin firing. Among them\, Haloferax volcanii has a circular chromosome with four active replication origins distributed across a 3.5 Mb DNA molecule and exhibit some distinctive properties\, such as a heterogeneous polyploidy\, carrying 10–18 copies of its genome. \nHow these highly polyploid organisms regulate the activation and timing of their multiple replication origins in coordination with cell growth and division remains an open question. To address this question\, we developed a multiscale approach\, implementing the STORM technique in archaea for the first time\, Marker Frequency Analysis by sequencing (MFA-seq) to capture the global replication profile at the population level\, and fluorescence in situ hybridization (FISH) to explore ploidy variation. \nOur findings reveal\, with an unprecedented resolution of ~30 nm\, new insights into the spatial regulation of replication foci\, demonstrating their organization into clusters. We further investigated DNA replication dynamics under varying growth conditions\, revealing a reduction in replication foci number that correlates with decreased replication rates and DNA content. By contrast\, altering the replication initiation mode—by inactivating all four replication origins—does not disrupt the overall replication dynamics. \nBy integrating these techniques\, we aim to characterize the replication program in H. volcanii and gain a deeper understanding of its regulation. \nContact : delphine.debarre@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/roxane-lestini-nicolas-olivier-laboratoire-doptique-et-biosciences-palaiseau/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260217T140000
DTEND;TZID=Europe/Paris:20260217T150000
DTSTAMP:20260404T142757
CREATED:20260129T161723Z
LAST-MODIFIED:20260130T142159Z
UID:10000039-1771336800-1771340400@sfp-alpes.fr
SUMMARY:Igor ROZHANSKIY (National Graphene Institute\, University of Manchester)
DESCRIPTION:Interacting spin physics in 2D : flat bands\, SOC renormalization\, and chiral textures\nRésumé : \nTwo-dimensional materials and their heterostructures offer a controllable setting where exchange\, spin-orbit coupling (SOC)\, and electron interactions shape the spin-resolved electronic structure and response. This seminar links two recent directions of my work through this common theme.\nThe first part focuses on van der Waals magnets (chromium trihalides) combined with graphene. Narrow\, spin-polarized conduction bands make these systems susceptible to charge-transfer-driven doping and strong correlations. Using DFT-calibrated effective tight-binding models\, I will show how flat-band features and longer-range hopping processes determine the low-energy spectrum and favor regimes with heavy\, strongly interacting carriers.\n​ The second part addresses many-body renormalization of SOC in monolayer transition metal dichalcogenides. Exchange effects can enhance the conduction-band spin-orbit splitting in a density-dependent manner. I will outline ​the underlying mechanism and discuss how it can be inferred from gated transport and quantum-oscillation measurements\, including multilayer configurations where valley structure and interlayer coupling provide additional diagnostics.\nA short outlook will touch on chiral spin textures\, such as skyrmions\, and how real-space chirality can contribute to transverse signals\, emphasizing possible connections and open questions for 2D material platforms. \nhttps://www.cea.fr/drf/irig/Pages/Animation-scientifique/seminaires/2026_Rozhanskiy.aspx \nContact : admin.spintec@cea.fr
URL:https://sfp-alpes.fr/event/igor-rozhanskiy-national-graphene-institute-university-of-manchester/
LOCATION:CEA – Salle de Séminaire IRIG (1005 – 445)\, Laboratoire Irig/Spintec\, salle de séminaire 445\, bâtiment 1005\, CEA-Grenoble\, Grenoble
CATEGORIES:Séminaire
ORGANIZER;CN="IRIG - CEA":MAILTO:odile.rossignol@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260217T140000
DTEND;TZID=Europe/Paris:20260217T150000
DTSTAMP:20260404T142757
CREATED:20260205T161137Z
LAST-MODIFIED:20260205T161544Z
UID:10000053-1771336800-1771340400@sfp-alpes.fr
SUMMARY:Anton POTOCNIK (IMEC\, Belgium)
DESCRIPTION:High-coherence foundry-compatible superconducting qubit platform\nRésumé : \nThe field of superconducting qubit technology has experienced rapid development over the past two decades. Recent advancements in the fabrication\, control and measurement of superconducting quantum devices have enabled integration of hundreds of qubits on a single chip. However\, the path towards larger-scale integration of thousands of qubits on a chip remains unclear. This talk presents imec’s platform for scalable superconducting qubit fabrication\, which is based on foundry-compatible thin film processing 1 and overlay Josephson-junction fabrication 2. The platform enables all-optical superconducting transmon qubit fabrication on 300 mm wafers\, achieving near state-of-the-art coherence times\, record-low aging and comparable Josephson junction variability to standard shadow-evaporation technique 3. A key focus of this presentation will be the understanding and mitigation of microwave losses induced by various fabricaiton steps such as Ar-milling 4 and oxide removal 6\,7 and materials such as -Ta 5 or ultra-high-resistivity silicon. The talk will conclude with an outline of ongoing efforts toward large-scale qubit characterization and control using cryo-CMOS electronics operating near qubits at the mixing-chamber plate of a dilution refrigerator 8. \n1 Mongillo\, et al.\, IEDM (2022). \n2 Verjauw et al.\, npj Quantum Information 8\, 93 (2022). \n3 Van Damme\, et al.\, Nature\, 634\, 74 (2024). \n4 Van Damme\, et al.\, PRA 20\, 014034 (2023). \n5 Lozano\, et al. Mater. Quantum. Technol. 4\, 025801 (2024). \n6 Verjauw\, et al.\, PRA 16\, 014018 (2021). \n7 Lozano\, et al.\, Advanced Science 12\, e09244 (2025). \n8 Acharya\, et al.\, Nature Electronics\, 6\, 900 (2023). \n_ \nContact : equipe-seminaires-nano@listes.grenoble.cnrs.fr
URL:https://sfp-alpes.fr/event/anton-potocnik-imec-belgium/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260217T140000
DTEND;TZID=Europe/Paris:20260217T150000
DTSTAMP:20260404T142757
CREATED:20260206T091214Z
LAST-MODIFIED:20260206T091214Z
UID:10000054-1771336800-1771340400@sfp-alpes.fr
SUMMARY:Francesco ROSA (Politecnico di Milano\, Italy)
DESCRIPTION:Magnetic and orbital properties of infinite-layer nickelate and cuprate superconductors\nRésumé : \nInfinite-layer (IL) nickelates recently gained strong interest thanks to their apparent analogies with cuprates\, including a square lattice-based structure dominated by superexchange antiferromagnetic interaction and the emergence of superconductivity upon hole doping. X-ray spectroscopies with synchrotron light are a very powerful tool for the investigation of such systems\, providing complementary information to the more traditional inelastic neutron scattering. In this seminar\, we discuss some of the recent results obtained by our group using both Resonant Inelastic X-ray Scattering (RIXS) and X-ray Magnetic Circular Dichroism (XMCD)\, mainly focusing on magnetism. RIXS results concern the analysis of dynamic spin excitations (magnons/paramagnons)\, investigating the effect of hole-doping on them and providing an estimate for the magnetic exchange coupling constants. Results on IL nickelates will be compared to analogous ones on cuprates\, highlighting analogies and differences. XMCD analysis is devoted to the static spin order in IL nickelates\, reporting the presence of a field induced out-of-plane Ni1+ spin moment. Based on magnetic field- and temperature-dependent measurements\, we justify our observations with an out-of-plane canting of in-plane anti-ferromagnetically correlated Ni1+ spins\, tentatively attributed to a symmetry lowering of the NiO2 planes. \n_ \nContact : andrew.fefferman@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/francesco-rosa-politecnico-di-milano-italy/
LOCATION:CNRS – Salle Louis Weil (E424)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260219T113000
DTEND;TZID=Europe/Paris:20260219T123000
DTSTAMP:20260404T142757
CREATED:20260212T155849Z
LAST-MODIFIED:20260212T155849Z
UID:10000059-1771500600-1771504200@sfp-alpes.fr
SUMMARY:Sharlen MOORE (Johns Hopkins University\, Baltimore\, USA)
DESCRIPTION:Revealing abrupt transitions from goal-directed to habitual behavior\nRésumé : \nA fundamental tenet of animal behavior is that decision-making involves multiple ‘controllers.’ Initially\, behavior is goal-directed\, driven by desired outcomes\, shifting later to habitual control\, where cues trigger actions independent of the motivational state. Clark Hull’s question from 1943 still resonates today: “Is this transition [to habit] abrupt\, or is it gradual and progressive?” Despite a century-long belief in gradual transitions\, this question remains unanswered as current methods cannot disambiguate goal-directed versus habitual control in real time. Here\, we introduce a novel ‘volitional engagement’ approach\, motivating animals by palatability rather than biological need. Providing less palatable water in the home cage reduced motivation to ‘work’ for plain water in an auditory discrimination task compared to water-restricted animals. Using quantitative behavior and computational modeling\, we found that palatability-driven animals learned to discriminate as quickly as water-restricted animals but exhibited state-like fluctuations when responding to the reward-predicting cue-reflecting goal-directed behavior. After thousands of trials\, these fluctuations spontaneously and abruptly ceased\, with animals always responding to the reward-predicting cue. In line with habitual control\, post- transition behavior displayed motor automaticity\, decreased error sensitivity (assessed via pupillary responses)\, and insensitivity to sensory-specific outcome devaluation. Bilateral lesions of the habit-related dorsolateral striatum (DLS) blocked transitions to habitual behavior. Finally\, we used bilateral fiber photometry in the putative controllers of goal-directed (dorsomedial striatum\, DMS) and habitual (DLS) behavior to monitor the evolution of neural activity across learning. Both the DMS and DLS exhibited learning- related signatures in cue\, lick\, and outcome-related signaling at similar timescales in parallel. Immediately after transitioning to habitual behavior\, outcome-related signaling was suppressed in the DLS and\, to a lesser extent\, in the DMS\, while cue-evoked responses further sharpened. This abrupt shift (reduction in outcome signaling and sharpening of cue-evoked responses) suggests that sensory cues rather than outcomes drive habitual responding. Our results demonstrate that both controllers (DMS and DLS) exhibit learning-related plasticity in parallel but that the behavioral manifestation of habits emerges spontaneously and abruptly in a DLS-dependent manner\, suggesting the involvement of a higher-level process that arbitrates between the two. \nContact : robin.magnard@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/sharlen-moore-johns-hopkins-university-baltimore-usa/
LOCATION:GIN – Amphi Serge Kampf\, Grenoble Institut des Neurosciences (GIN) Bât. Edmond J. Safra\, Chemin Fortune Ferrini CHU\, La Tronche\, 38700\, France
CATEGORIES:Séminaire
ORGANIZER;CN="GIN":MAILTO:yves.goldberg@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260220T110000
DTEND;TZID=Europe/Paris:20260220T120000
DTSTAMP:20260404T142757
CREATED:20260212T160617Z
LAST-MODIFIED:20260212T160617Z
UID:10000060-1771585200-1771588800@sfp-alpes.fr
SUMMARY:Dmitri KHVESHCHENKO (University of North Carolina)
DESCRIPTION:Applied Hall-o-graphy with no strings attached\nRésumé : \nThis discussion aims at ascertaining the true status of the so-called applied-holographic approach to strongly correlated quantum matter. The latter ranges from ‘not even wrong’ for the constructions based on the ad hoc ‘AdS/CMT’ to ‘might be right\, albeit for the wrong reason’ for those emerging in the context of phase-space bosonization and the related ‘Hall-o-graphic’ hydrodynamics.The presentation will be made accessible to the wide audience of non-experts and students. \nContact : serge.florens@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/dmitri-khveshchenko-university-of-north-carolina/
LOCATION:LPMMC\, CNRS - Bat G\, salle Roger Maynard G-421\, Grenoble
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260220T123000
DTEND;TZID=Europe/Paris:20260220T131500
DTSTAMP:20260404T142757
CREATED:20260130T161408Z
LAST-MODIFIED:20260130T162429Z
UID:10000049-1771590600-1771593300@sfp-alpes.fr
SUMMARY:Mourad CHABBI (docteur en sciences politiques\, GEM / « Géopolitique ») & Ludivine CALAMEL (professeur Senior en sciences de gestion\, GEM)
DESCRIPTION:L’impact du contexte géopolitique sur l’évolution des règles et du marché des semi-conducteurs\nRésumé : \nCette conférence s’intéresse à la manière dont le contexte géopolitique impacte les organisations\, et notamment certaines gravitant dans le domaine de la micro-électronique (semi-conducteurs). \nContact : giant.campus@cea.fr
URL:https://sfp-alpes.fr/event/mourad-chabbi-docteur-en-sciences-politiques-gem-geopolitique-ludivine-calamel-professeur-senior-en-sciences-de-gestion-gem/
LOCATION:Amphi Minatec\, 3 parvis Louis Néel\, Grenoble\, 38054\, France
CATEGORIES:Séminaire
ORGANIZER;CN="GIANT":MAILTO:giant.campus@cea.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260224T183000
DTEND;TZID=Europe/Paris:20260224T183000
DTSTAMP:20260404T142757
CREATED:20260222T085804Z
LAST-MODIFIED:20260222T090042Z
UID:10000072-1771957800-1771957800@sfp-alpes.fr
SUMMARY:Sophie Abby (TIMC\, Grenoble)
DESCRIPTION:Le premier souffle : comment les microbes ont oxygéné la Terre\nRésumé :  \nCette soirée explore la diversité du vivant à travers l’arbre phylogénétique\, en s’appuyant sur les travaux du projet Quinevol qui étudie les quinones\, molécules essentielles présentes dans tous les organismes vivants. Comment les organismes primitifs respiraient-ils avant l’apparition de l’oxygène ? Comment se sont-ils ensuite adaptés à ce qui était alors un véritable poison ? Un voyage scientifique des origines de la vie jusqu’aux frontières de la recherche actuelle. \n 
URL:https://sfp-alpes.fr/event/sophie-abby-timc-grenoble/
LOCATION:Museum de Grenoble\, 1 Rue Dolomieu\, Grenoble\, 38000\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260226T130000
DTEND;TZID=Europe/Paris:20260226T140000
DTSTAMP:20260404T142757
CREATED:20260130T162946Z
LAST-MODIFIED:20260213T084606Z
UID:10000050-1772110800-1772114400@sfp-alpes.fr
SUMMARY:Céline SCORNAVACCA (ISEM – Montpellier)
DESCRIPTION:A New Algorithm for Computing the Likelihood of a Phylogeny\nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/celine-scornavacca-isem-montpellier/
LOCATION:IMAG – Salle de Réunion\, 150 place du Torrent\, St Martin d’Hères\, 38400\, France
CATEGORIES:Séminaire
ORGANIZER;CN="TIMC - IMAG":MAILTO:lucie.lamothe@univ-grenoble-alpes.fr
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260226T140000
DTEND;TZID=Europe/Paris:20260226T150000
DTSTAMP:20260404T142757
CREATED:20260130T095731Z
LAST-MODIFIED:20260130T102010Z
UID:10000043-1772114400-1772118000@sfp-alpes.fr
SUMMARY:Paulo Henrique MACIEL BUZZETTI (Département de Chimie Moléculaire\, équipe I2BM (nouvel entrant))
DESCRIPTION:From Bio-analytics & Bio-energy : A Journey Through Functional Interfaces & Supramolecular Architectures\nContact : quentin.laurent@univ-grenoble-alpes.fr 
URL:https://sfp-alpes.fr/event/paulo-henrique-maciel-buzzetti-departement-de-chimie-moleculaire-equipe-i2bm-nouvel-entrant/
LOCATION:DCM – Salle C209\, DCM - Bât Chimie Recherche 301 rue de la Chimie\, St Martin d'Hères\, 38400\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260226T140000
DTEND;TZID=Europe/Paris:20260226T150000
DTSTAMP:20260404T142757
CREATED:20260130T101313Z
LAST-MODIFIED:20260130T101624Z
UID:10000044-1772114400-1772118000@sfp-alpes.fr
SUMMARY:Rolf LORTZ (CNRS-LNCMI\, Grenoble)
DESCRIPTION:High temperatures superconductivity with giant pressure effect in 3D networks of boron doped ultra-thin carbon nanotubes in the pores of ZSM-5 zeolite\nRésumé : \nWe report the fabrication of three‑dimensional\, interconnected networks of ultrathin carbon nanotubes (CNTs) embedded within the ~5 Å pores of zeolite ZSM‑5 crystals using a controlled chemical vapour deposition (CVD) process. Confinement within these sub‑nanometre channels yields CNTs with strongly one‑dimensional electronic characteristics\, including pronounced van Hove singularities in the density of states. By introducing boron dopants during growth\, we strategically tune the Fermi level toward a van Hove singularity\, as supported by ab initio electronic‑structure calculations. This electronic tuning\, combined with the intrinsic 3D connectivity of the CNT–zeolite framework\, enables a dimensional crossover from 1D electronic states to a phase‑coherent\, bulk superconducting state.\nTo establish the presence of superconductivity\, we employ five complementary experimental probes—electrical resistivity\, ac susceptibility\, dc magnetization\, specific heat\, and point‑contact spectroscopy. All measurements consistently indicate a superconducting transition at ambient pressure with a critical temperature Tc in the range of 220–250 K. Simultaneous resistivity and ac‑susceptibility measurements reveal a three‑order‑of‑magnitude drop in resistance accompanied by the onset of a robust Meissner effect with nearly perfect diamagnetic screening. Point‑contact spectroscopy further uncovers a multigap superconducting state\, with a dominant gap of approximately 30 meV\, in reasonable agreement with expectations from Bardeen–Cooper–Schrieffer (BCS) theory. The differential conductance spectra exhibit clear particle–hole symmetry and evolve smoothly between the tunnelling and Andreev reflection regimes as the contact transparency is varied—behaviour uniquely characteristic of superconducting quasiparticles. Specific‑heat measurements show a distinct anomaly at the transition\, reminiscent of signatures observed in high‑Tc cuprate superconductors.\nFinally\, we find that the application of very modest external pressure further enhances the superconducting transition temperature\, pushing Tc above ambient temperature and suggesting that the system remains far from its optimal tuning point. These results collectively point to a new pathway for achieving high‑temperature superconductivity in engineered low‑dimensional carbon‑based materials. \nContact : florence.levy-bertrand@neel.cnrs.fr
URL:https://sfp-alpes.fr/event/rolf-lortz-cnrs-lncmi-grenoble/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
END:VEVENT
END:VCALENDAR