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DTSTART;TZID=Europe/Paris:20260909T140000
DTEND;TZID=Europe/Paris:20260909T150000
DTSTAMP:20260928T072452Z
CREATED:20260928T072216Z
LAST-MODIFIED:20260928T072452Z
UID:12458-1788962400-1788966000@fermi.univ-tlse3.fr
SUMMARY:Atomic-Scale Imaging of Interfacial Structure\, Charge\, and Phonon Dynamics. - (Xiaoqing Pan / Seminar / CEMES). - 9/09/2026\, 14H
DESCRIPTION:Séminaire CEMES \nXiaoqin Pan Université de Californie à Irvine \nCEMES\, 9/09/2026\, 14H00 \nRésumé : \nVoir fichier joint : CalTech_Seminar_CEMES_ Xiaoqing-Pan
URL:https://fermi.univ-tlse3.fr/event/atomic-scale-imaging-of-interfacial-structure-charge-and-phonon-dynamics-xiaoqing-pan-seminar-cemes-9-09-2026-14h/
LOCATION:salle de conférence du CEMES\, CEMES - 29\, rue Jeanne Marvig BP 94347\, Toulouse\, 31055\, France
CATEGORIES:CEMES,Events,Seminars
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260915T140000
DTEND;TZID=Europe/Paris:20260915T150000
DTSTAMP:20260928T065529Z
CREATED:20260928T065529Z
LAST-MODIFIED:20260928T065529Z
UID:12448-1789480800-1789484400@fermi.univ-tlse3.fr
SUMMARY:La physique de l’imperfection : de la percolation à la localisation et aux instabilités vers la formation de moments locaux. - (Kedar Damle / LPT / Seminar). -15/09/2026\, 14H
DESCRIPTION:Séminaire LPT \nKedar Damle (TIFR\, Mumbai) \nSeminar LPT\, 15/09/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/la-physique-de-limperfection-de-la-percolation-a-la-localisation-et-aux-instabilites-vers-la-formation-de-moments-locaux-kedar-damle-lpt-seminar-15-09-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260917T140000
DTEND;TZID=Europe/Paris:20260917T160000
DTSTAMP:20260928T071507Z
CREATED:20260928T070827Z
LAST-MODIFIED:20260928T071507Z
UID:12453-1789653600-1789660800@fermi.univ-tlse3.fr
SUMMARY:Fundamental Aspects of Van der Waals Interactions in Physics and Chemistry. - (Peter Szabo / LCPQ / Seminar). - 17/ 09 /2026\, 14H
DESCRIPTION:Séminaire du LCPQ \nPeter Szabo KU Leuven \nSeminar LCPQ\, 15/09/2026\, 14H \nSummary :\nVan der Waals (vdW) interactions arise from electronic zero-point and thermal fluctuations\, scaling rapidly with system size. Despite being weak compared to covalent and ionic bonds\, they are fundamental in determining the structure\, stability\, and spectroscopic properties of molecules and materials. These interactions can be described through linear response functions\, which provide a quantitative framework for understanding and predicting how systems react to small perturbations. Among them polarizability is the most significant\, governing intermolecular interactions and determining spectroscopic observables. Accurate modeling of polarizability is also crucial in developing new methods in density functional theory\, where capturing nonlocal vdW effects remains a major challenge.\nIn our recent study [1]\, we explored the system-size dependence of polarizability\, denoted as α\, within a quantum-mechanical framework. Interestingly\, we found that the general quantum-mechanical system-size dependence of polarizability follows a four-dimensional scaling law\, which deviates from the commonly accepted classical textbook result (classical 3D scaling: α ~ Volume ~ R3\, where R represents the system’s radius). This four-dimensional scaling law is a pure quantum effect arising from quantum fluctuations and remains valid for quantum-mechanical systems with varying spatial dimensions\, symmetry\, and excitation states. Furthermore\, it is also applicable to many-particle systems\, as shown by accurately predicting the dipole polarizability of atoms and small organic molecules. Our unified formula can be extended to arbitrary response functions by renormalizing the quantum fluctuations caused by external perturbations. \nReferences: \n[1] P. Szabo\, et al.\, Phys. Rev. Lett. 128\, 070602\, 2022
URL:https://fermi.univ-tlse3.fr/event/fundamental-aspects-of-van-der-waals-interactions-in-physics-and-chemistry-peter-szabo-lcpq-seminar-17-09-2026-14h/
CATEGORIES:Events,LCPQ,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260922T140000
DTEND;TZID=Europe/Paris:20260922T150000
DTSTAMP:20260727T121830Z
CREATED:20260722T121950Z
LAST-MODIFIED:20260727T121830Z
UID:12392-1790085600-1790089200@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Sariah Al Saati/ LPT / Seminar). -22/09/2026\, 14H
DESCRIPTION:Séminaire LPT \nSariah Al Saati (École polytechnique) \nSeminar LPT\, 22/09/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-sariah-al-saati-lpt-seminar-22-09-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
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