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DTSTART;TZID=Europe/Paris:20260625T130000
DTEND;TZID=Europe/Paris:20260625T140000
DTSTAMP:20260620T120513
CREATED:20260507T093855Z
LAST-MODIFIED:20260612T075402Z
UID:10000148-1782392400-1782396000@sfp-alpes.fr
SUMMARY:Elodie LAINE (Sorbone Université)
DESCRIPTION:What evolution tells us about the impact of mutations — and how to scale it up\n_ \nContact : lucie.lamothe@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/elodie-laine-sorbone-universite/
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:20260625T140000
DTEND;TZID=Europe/Paris:20260625T150000
DTSTAMP:20260620T120513
CREATED:20260521T145948Z
LAST-MODIFIED:20260521T145948Z
UID:10000158-1782396000-1782399600@sfp-alpes.fr
SUMMARY:Ismaele Vincent MASIELLO (TU WIEN\, Austria)
DESCRIPTION:Nonclassicality\, quasiprobabilities and weak values explored in neutron interferometry\nRésumé : \nThe violation of Bell inequalities has demonstrated that quantum mechanics exhibits features with no classical counterpart; however\, identifying the boundary between quantumness and classicality remains a nontrivial task. Quasiprobability representations and weak values are valuable tools for investigating these boundaries\, and their physical relevance has been confirmed across a range of impactful experiments. Several of these experiments have been implemented in neutron interferometry\, a platform that has historically played a central role in the study of foundational quantum mechanics and nonclassicality. Compared to typical photonic implementations\, it is less susceptible to classical reinterpretations\, as it involves a single massive particle in a superposition of two or three spatially separated paths. Moreover\, it offers several experimental advantages\, such as macroscopic beam separation\, individual control of the sub-beams\, and long interaction and coherence times at room temperature and ambient pressure. In this talk\, I will introduce weak values and quasiprobabilities as tools to investigate the quantum–classical boundary and present results obtained in neutron interferometry.\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 \n  \n 
URL:https://sfp-alpes.fr/event/ismaele-vincent-masiello-tu-wien-austria/
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:20260625T140000
DTEND;TZID=Europe/Paris:20260625T150000
DTSTAMP:20260620T120513
CREATED:20260529T142941Z
LAST-MODIFIED:20260529T143015Z
UID:10000172-1782396000-1782399600@sfp-alpes.fr
SUMMARY:Benjamin BACQ-LABREUIL (IPCMS\, Université Strasbourg)
DESCRIPTION:The Role of the Apical Oxygen in Cuprate High-Temperature Superconductors\nRésumé : \nScanning tunneling microscopy measurements exploiting the natural superstructure modulation of the cuprate superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$ (Bi-2212) have revealed a possible correlation between the Cu-apical-O distance and the superconducting order parameter\, as reported recently by O’Mahony et al. [1]. These observations were interpreted as evidence for a direct link between superconductivity and the charge-transfer gap\, and more broadly revived the long-standing question of the role of apical oxygens in cuprate superconductivity. In this talk\, I will discuss the impact of apical oxygen displacement on the superconducting properties of Bi$_2$Sr$_2$CuO$_{6+x}$\, Bi-2212\, and HgBa$_2$CuO$_{4+x}$ [2]\, leveraging a recently developed first-principles framework for high-temperature superconductors [3]. The quantitative agreement between our calculations and experiments allows us to unambiguously attribute the observed variations of superconducting order parameter to changes in the apical distance. We demonstrate\, however\, that the latter controls the former predominantly via the effective hole-doping of the CuO$_2$ planes\, with negligible effect on the charge-transfer gap. The modest magnitude of the order parameter modulation induced by apical-oxygen displacement alone therefore warrants caution in interpreting correlations between $T_c$ and the apical distance inferred from comparisons across different cuprate compounds. \n[1] O’Mahony\, et al.\, Proc. Natl. Acad. Sci. 119\, e2207449119 (2022) \n[2] S. Vadnais\, et al.\, arXiv:2601.16017 (2026) \n[3] B. Bacq-Labreuil\, et al.\, Phys. Rev. X 15\, 021071 (2025) \n_ \nContact : florence.levy-bertrand@neel.cnrs.fr 
URL:https://sfp-alpes.fr/event/benjamin-bacq_labreuil-ipcms-universite-strasbourg/
LOCATION:CNRS – Salle Rémy Lemaire (K223)\, CNRS - Institut Néel 25 avenue des Martyrs\, Grenoble\, 38042\, France
CATEGORIES:Séminaire
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