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X-ORIGINAL-URL:https://fermi.univ-tlse3.fr
X-WR-CALDESC:Évènements pour FeRMI
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241104T140000
DTEND;TZID=Europe/Paris:20241104T160000
DTSTAMP:20260417T162536
CREATED:20241030T101906Z
LAST-MODIFIED:20241030T102248Z
UID:11125-1730728800-1730736000@fermi.univ-tlse3.fr
SUMMARY:Des doutes d'Einstein aux bits intriqués : la seconde révolution quantique. - (Alain ASPECT / séminaire/ SFP). - 4/11/2024\, 14H
DESCRIPTION:Alain ASPECT (Institut d’Optique Graduate School\,Université Paris-Saclay) \nprix Nobel de Physique 2022 \nLieu : Amphi Vinci (bât. 20\, INSA) \nPrésentation :\nLa première révolution quantique\, basée sur le concept de dualité onde-particule\, a été une révolution conceptuelle\, scientifique et technologique. Plus récemment\, les doutes d’Einstein sur le formalisme quantique ont conduit à la mise en évidence du caractère révolutionnaire du concept d’intrication quantique\, et à des progrès scientifiques inédits. On nous promet des applications technologiques fascinantes de l’intrication. L’impact sur la société sera-t-il suffisant pour que l’on puisse pleinement parler d’une nouvelle révolution quantique ? \nVisio ici : lien Teams \nAFFICHE_SFP_Alain_ASPECT_04_11_2024 \n  \n\n \n \n 
URL:https://fermi.univ-tlse3.fr/event/des-doutes-deinstein-aux-bits-intriques-la-seconde-revolution-quantique-alain-aspect-seminaire-sfp-4-11-2024-14h/
CATEGORIES:Events,Seminars,SFP / SFC
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241106T110000
DTEND;TZID=Europe/Paris:20241106T123000
DTSTAMP:20260417T162536
CREATED:20241029T140535Z
LAST-MODIFIED:20241030T073520Z
UID:11117-1730890800-1730896200@fermi.univ-tlse3.fr
SUMMARY:Seeing is Believing: From molecular reactions to nanomachines. - (Dominik Lungerich /  Seminar / CEMES). - 6/11/2024\, 11H
DESCRIPTION:Séminaire du CEMES\n \nDominik Lungerich\,  Center for Nanomedicine (CNM)\, Institute for Basic Science (IBS)\, Seoul South Korea and Graduate Program of Nano Biomedical Engineering (Nano BME)\, Advanced Science Institute\, Yonsei University\, Seoul\, South Korea  \nhttps://www.lungerichlab.com/
URL:https://fermi.univ-tlse3.fr/event/seeing-is-believing-from-molecular-reactions-to-nanomachines-dominik-lungerich-seminar-cemes-6-11-2024-11h/
LOCATION:salle de conférence du CEMES\, CEMES - 29\, rue Jeanne Marvig BP 94347\, Toulouse\, 31055\, France
CATEGORIES:CEMES,Events,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241112T140000
DTEND;TZID=Europe/Paris:20241112T153000
DTSTAMP:20260417T162536
CREATED:20241027T093701Z
LAST-MODIFIED:20241030T073538Z
UID:10949-1731420000-1731425400@fermi.univ-tlse3.fr
SUMMARY:Modes zéro forts dans les circuits quantiques intégrables. - (Eric Vernier / LPT / Seminar). - 12/11/2024\, 14H
DESCRIPTION:Eric Vernier (LPSM) \nSeminar LPT\, 12/11/2024\, 14H\, 3R1\, seminar room\, 3rd floor \nAbstract :\nIt is a classic result that certain interacting integrable spin chains host robust edge modes known as strong zero modes (SZMs). In this Letter\, we extend this result to the Floquet setting of local quantum circuits\, focusing on a prototypical model providing an integrable Trotterization for the evolution of the XXZ Heisenberg spin chain. By exploiting the algebraic structures of integrability\, we show that an exact SZM operator can be constructed for these integrable quantum circuits in certain regions of parameter space. Our construction\, which recovers a well-known result by Paul Fendley in the continuous-time limit\, relies on a set of commuting transfer matrices known from integrability\, and allows us to easily prove important properties of the SZM\, including normalizabilty. Our approach is different from previous methods and could be of independent interest even in the Hamiltonian setting. Our predictions\, which are corroborated by numerical simulations of infinite-temperature autocorrelation functions\, are potentially interesting for implementations of the XXZ quantum circuit on available quantum platforms.
URL:https://fermi.univ-tlse3.fr/event/modes-zero-forts-dans-les-circuits-quantiques-integrables-eric-vernier-lpt-seminar-15-10-2024-14h/
LOCATION:salle de séminaire 3ème étage\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241119T140000
DTEND;TZID=Europe/Paris:20241119T153000
DTSTAMP:20260417T162536
CREATED:20241119T071418Z
LAST-MODIFIED:20241119T084653Z
UID:11041-1732024800-1732030200@fermi.univ-tlse3.fr
SUMMARY:Effets topologiques et géométriques dans les électrons et les photons. - (Kang Yang / LPT / Seminar). - 19/11/2024\, 14H
DESCRIPTION:Kang Yang (Université libre de Berlin) \nSeminar LPT\, 19/11/2024\, 14H\, 3R4\, salle de conférence \nSummary :\nTopology and geometry help us understand many physical phenomena. Their broad applicability without resort to explicit parameters leads to a variety of simple universal behaviours. In this presentation\, I will introduce some geometric effects in correlated electrons and topological effects in photonic band structures. In the first part\, I will show how geometry of quantum states can help us understand electrons in flat bands. Such systems are dominated by interactions and host intriguing states with fractional statistics. I will show how nonuniform quantum distances between the Bloch states lead to emergent particle-hole asymmetry and serve as a guideline to the interacting phase diagram. This has several applications in twisted moiré systems. In the second part\,I will go to my recent work on photonic bands\, where dissipation can be modelled by simple non-Hermitian evolution. I will briefly introduce my recent classification. This leads to generic nodal points carrying non-Abelian charges and topology duality in quantum states. These phenomena are realised experimentally through a single-photon interferometry. \n\n\n\n 
URL:https://fermi.univ-tlse3.fr/event/tba-kang-yang-lpt-seminar-19-11-2024-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241122T110000
DTEND;TZID=Europe/Paris:20241122T123000
DTSTAMP:20260417T162536
CREATED:20241118T135301Z
LAST-MODIFIED:20241119T084704Z
UID:10930-1732273200-1732278600@fermi.univ-tlse3.fr
SUMMARY:Introduction à la psychoacoustique. - (Julien Tardieu / FeRMI / Séminaire). - 22/11/2024\, 10H30
DESCRIPTION:Séminaires d’ouverture FeRMI\n \nJulien Tardieu\,   Plateforme Cognition\, Comportement et Usages : Maison des Sciences de l’Homme et de la Société – Toulouse \nRésumé :\nPour mieux comprendre comment l’humain perçoit les sons qui l’entourent et leur donne du sens\, nous aborderons les principales caractéristiques de la perception sonore. Une première partie sera consacrée à la physiologie du système auditif (ex: oreille interne\, cerveau auditif)\, et une deuxième partie sera consacrée aux capacités auditives (ex: perception de la hauteur\, de l’intensité ou de la localisation d’un son). \n 
URL:https://fermi.univ-tlse3.fr/event/psycho-accoustique-julien-tardieu-fermi-seminaire-22-11-2024-11h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,FeRMIsem,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20241128T140000
DTEND;TZID=Europe/Paris:20241128T153000
DTSTAMP:20260417T162536
CREATED:20241124T081906Z
LAST-MODIFIED:20241126T082005Z
UID:11183-1732802400-1732807800@fermi.univ-tlse3.fr
SUMMARY:Magnetic fluctuations in strongly correlated systems: from toy models to realistic materials simulations. - (Maria Chatzieleftheriou / LCPQ/ Séminaire). - 28/11/2024\, 14H00
DESCRIPTION:Séminaire LCPQ \nMaria Chatzieleftheriou\,  Institute for Theoretical Physics\, Goethe University Frankfurt\, Germany \nSummary:\nStrongly correlated electronic systems exhibit intriguing properties and highly complex phase diagrams\, including metal-to-insulator transitions\, magnetic/charge orderings and the field’s holy grail: high temperature superconductivity. Their theoretical description is very challenging and various many-body methods have been developed to this direction. I will present results using state-of-the-art numerical techniques that allow for an accurate description of both strong local electronic correlations and spatial fluctuations. I will discuss the application of this approach on the study of a simple model\, relevant for a series of materials\, where we have analyzed the interplay of Mott physics and magnetic fluctuations. We have identified the Slater and Heisenberg regimes in the phase diagram\, which are separated by a crossover region of competing spatial and local electronic correlations. This bridging of the two limits (the spin-fluctuation dominated Slater regime at weak coupling and the Mott insulator at strong-coupling) had been a key missing ingredient to our understanding of metal-insulator transitions in real materials. I will\, moreover\, present results of a recent work on the perovskite Sr2RuO4 compound\, where we have performed realistic calculations and have accurately reproduced the experimentally estimated magnetic susceptibility\, resolving a long-standing discrepancy\, in the community\, between theory and experiment.
URL:https://fermi.univ-tlse3.fr/event/magnetic-fluctuations-in-strongly-correlated-systems-from-toy-models-to-realistic-materials-simulations-maria-chatzieleftheriou-lcpq-seminaire-28-11-2024-14h00/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LCPQ,Seminars
END:VEVENT
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