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DTSTART;TZID=Europe/Paris:20250408T100000
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DTSTAMP:20260414T195324
CREATED:20250408T063134Z
LAST-MODIFIED:20250408T063428Z
UID:10000003-1744106400-1744113600@sfp-alpes.fr
SUMMARY:Nanofluidics meets condensed-matter physics : challenges and perspectives at the Quantum Plumbing Lab
DESCRIPTION:Nikita Kavokine (EPFL\, Switzerland)\n\n\n The hydrodynamic wall has traditionally been considered a featureless object\, whose only role is to provide a boundary for the fluid flow. Yet\, there is now ample evidence that at nanometer scales\, fluid flows are sensitive to the wall’s internal degrees of freedom. Recently\, we have developed a field theory formalism that captures the interaction between interfacial liquid flows and the wall’s electronic excitations\, in the form of a phenomenon termed quantum friction. In this talk\, I will show how quantum friction theory both sheds light on existing experiments\, and predicts new couplings between liquid flows and electronic currents\, with potential applications at the water-energy nexus. I will also highlight the many questions that it leaves unanswered\, along with the experimental program that we are deploying to solve them at the Quantum Plumbing Lab. \nContact : romain.lhermerout@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/nanofluidics-meets-condensed-matter-physics-challenges-and-perspectives-at-the-quantum-plumbing-lab/
LOCATION:LiPhy\, Salle de Conférence\, 140 rue de la Physique\, St Martin d'Hères\, 38400
CATEGORIES:Séminaire
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20250424T140000
DTEND;TZID=Europe/Paris:20250424T150000
DTSTAMP:20260414T195324
CREATED:20250418T085804Z
LAST-MODIFIED:20250418T085804Z
UID:10000004-1745503200-1745506800@sfp-alpes.fr
SUMMARY:How AI can help us elucidate chemical reaction mechanisms ? / Comment l'IA peut nous aider à élucider les mécanismes des réactions chimiques ?
DESCRIPTION:Rolf DAVID (DCM\, Equipe SiTH)
URL:https://sfp-alpes.fr/event/how-ai-can-help-us-elucidate-chemical-reaction-mechanisms-comment-lia-peut-nous-aider-a-elucider-les-mecanismes-des-reactions-chimiques/
LOCATION:DCM\, Salle de C209 Bât Chimie Recherche\, St Martin d'Hères\, France
CATEGORIES:Séminaire
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DTSTART;TZID=Europe/Paris:20250507T110000
DTEND;TZID=Europe/Paris:20250507T120000
DTSTAMP:20260414T195324
CREATED:20250425T083338Z
LAST-MODIFIED:20250425T083338Z
UID:10000006-1746615600-1746619200@sfp-alpes.fr
SUMMARY:Isotropic amorphous topological phases - Daniel VARJAS
DESCRIPTION:Résumé : \nTopological phases of matter are distinguished by robust properties that are insensitive to perturbations. These include quantized responses\, perfectly conducting interfaces\, and exactly zero energy modes\, with wide-ranging technological applications. Recent years saw the complete classification of topological band structures\, revealing an abundance of topological crystalline insulators. Many questions about the robustness of these phases to disorder are\, however\, still open. We develop new theoretical and numerical methods based on local topological markers and effective momentum-space Hamiltonians to study topological phases in disordered systems. We introduce symmetry indicators for amorphous systems\, and we also demonstrate that it is possible to construct a fully isotropic and inversion-symmetric three-dimensional medium where time-reversal symmetry is systematically broken. We propose an amorphous system with scalar time-reversal symmetry breaking\, implemented by hopping through chiral magnetic clusters along the bonds. The average spatial symmetries alone protect a statistical topological insulator phase in this system\, analogous to crystalline mirror Chern insulators. We also show the expected transport properties of a three-dimensional statistical topological insulator\, which remains critical on the surface for odd values of the invariant.
URL:https://sfp-alpes.fr/event/isotropic-amorphous-topological-phases-daniel-varjas/
LOCATION:LPMMC\, CNRS - Bat G\, salle Roger Maynard G-421\, Grenoble
CATEGORIES:Séminaire
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