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X-WR-CALDESC:Évènements pour FeRMI
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DTSTART;TZID=Europe/Paris:20211203T110000
DTEND;TZID=Europe/Paris:20211203T123000
DTSTAMP:20260514T140458
CREATED:20211126T153129Z
LAST-MODIFIED:20211129T081108Z
UID:7540-1638529200-1638534600@fermi.univ-tlse3.fr
SUMMARY:Time-evolution of local information : thermalization dynamics of local observables (Loïc Herviou / LPT / Seminar). - 3/12\, 11H.
DESCRIPTION:Loïc Herviou (EPFL\, Lausanne) \nAbstract : Understanding thermalization in closed quantum mechanics remains a subtle problem. As the occupancies of the Hamiltonian eigenstates are conserved\, thermalization occurs when eigenstates close in energy share similar local observables. In this talk\, I will discuss thermalization through the point of view of information. I will introduce a concept of information lattice\, which allows to represent the information flow using locality as an additional dimension. Thermalization then corresponds to a flow of the state specific information to a non-local range. Based on this observation\, I will propose a tentative algorithm that allows to simulate large scale dissipative systems at long times. \n  \n\n  \n 
URL:https://fermi.univ-tlse3.fr/event/tba-loic-herviou-lpt-seminar-3-12-11h/
LOCATION:salle 20\, RDC\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211203T110000
DTEND;TZID=Europe/Paris:20211203T130000
DTSTAMP:20260514T140458
CREATED:20211130T075600Z
LAST-MODIFIED:20211130T075600Z
UID:7605-1638529200-1638536400@fermi.univ-tlse3.fr
SUMMARY:Microscopic processes for hydrogen chemisorbed on graphene: permeation and recombination (Marta Hernández / LCAR / Seminar). - 3/12\, 11H
DESCRIPTION:Marta Hernández (Instituto de Física Fundamental (IFF-CSIC) \nDownload presentation  : Hernandez_LCAR_dec21
URL:https://fermi.univ-tlse3.fr/event/microscopic-processes-for-hydrogen-chemisorbed-on-graphene-permeation-and-recombination-marta-hernandez-lcar-seminar-3-12-11h/
LOCATION:salle de séminaire 3ème étage\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,LCAR,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211207T140000
DTEND;TZID=Europe/Paris:20211207T160000
DTSTAMP:20260514T140458
CREATED:20211206T090000Z
LAST-MODIFIED:20211206T095922Z
UID:7559-1638885600-1638892800@fermi.univ-tlse3.fr
SUMMARY:Spin-Orbit Physics at Magnetic Interfaces (Aurélien Manchon / LPT / Seminar). - 7/12\, 14 H.
DESCRIPTION:Aurélien Manchon (CINaM\, Université d’Aix-Marseille) \nMagnetic materials lacking inversion symmetry constitute a unique platform for the exploration and control of magnetism. In these systems\, typically multilayers of transition metal ferromagnets and heavy metals (W\, Pt\, Bi2Se3 etc.)\, interfacial spin-orbit coupling promotes a wealth of physical phenomena\, among which the emergence of magnetic skyrmions\, spin-to-charge conversion\, spin-orbit torques\, as well as chiral magnetic damping. In this presentation\, I will first discuss the nature of interfacial spin-orbit coupling in magnetic multilayers and examine how it promotes spin-orbit torques. I will review various key aspects of this torque (symmetries and physical origin) and will discuss in particular a newly discovered component that allows for field-free switching. In a second part\, I will discuss how this torque can be used to electrically manipulate and excite antiferromagnetic materials\, a class of materials that can support ultrafast THz excitations.
URL:https://fermi.univ-tlse3.fr/event/spin-orbit-physics-at-magnetic-interfaces-aurelien-manchon-lpt-seminar-7-12-14-h/
LOCATION:Visio
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211209T090000
DTEND;TZID=Europe/Paris:20211209T120000
DTSTAMP:20260514T140458
CREATED:20211206T040002Z
LAST-MODIFIED:20220511T092747Z
UID:6862-1639040400-1639051200@fermi.univ-tlse3.fr
SUMMARY:Electronic transitions\, statistics and digital tools for quantum chemistry (Mickael Veril/ LCPQ / Thèses) – 9/12/2021\, 9H
DESCRIPTION:Mickaël Véril\,  LCPQ\, seminary room\, 3rd floor -3r1B4 \nAbstract: \nThis thesis concerns two main topics: i) molecular electronic excited states and ii) digital tools for theoretical quantum chemistry.\nThe present thesis starts with a study of the GW family of approximations. These are known to be accurate and relatively cheap methodologies for the computation of charged excitations such as ionization potentials and electronic affinities in molecules and band gaps in solids. These methods can be perturbative\, partially or fully self-consistent and are able to provide chemically accurate properties for weakly correlated systems. However\, as discussed in details\, discontinuities can be observed for several key properties\, particularly in potential energy surfaces even in the weakly correlated regime. These discontinuities are due to poles in the self-energy — a key quantity of the GW formalism — as each of its branch is associated with a distinct solution of the quasiparticle equation. We show that\, in diatomic molecules\, multisolution behavior in frontier orbitals is more likely if the energy gap between these orbitals is small.\nThe central part of this thesis deals with the QUEST project\, a large database of more than 600 vertical excitations energies of various natures. The aim of this open-source and easily-modifiable database is to provide highly-accurate reference excitations energies for benchmarking and cross comparisons of computational models. These reference excitations energies are divided into six subsets depending on the size of the molecules and the types of excitations. In order to gather the huge amount of data of the QUEST project\, we have created a website where one can easily test and compare the accuracy of a given method with respect to various variables such as the molecule size or its family\, the nature of the excited states\, the type of basis set\, etc.\nThe next part is about digital tools and\, in particular\, the implementation of a web demo of Quantum Package\, an open-source software developed primarily by our research group\, which has been designed to be easy to use by quantum chemists\, whether they are users or developers. The possibility of testing the software without the need to install it is a real opportunity to make Quantum Package more popular in our community. The containerization technology provided by Docker and the Linux kernel allow us to quickly start a clean demo environment for each user and stop it easily with interesting performance.\nFinally\, pursuing the recent work of our team on the benzene molecule\, we report reference frozen-core correlation energies for the twelve five- and six-membered ring molecules of the QUEST project using the Configuration Interaction using a Perturbative Selection made Iteratively (CIPSI) algorithm in the standard correlation-consistent double-ζ Dunning basis set (cc-pVDZ). These correspond to Hilbert spaces with sizes ranging from 10²⁸ to 10³⁶. The performance and convergence properties of several series of methods are investigated. In particular\, we study the convergence properties of the Møller-Plesset perturbation series up to fifth-order as well as various single-reference coupled-cluster models which include up to quadruple excitations. \nUnfortunately\, because of the sanitary conditions\, I regret not being able to do a post-thesis party. I am really sorry.\nYou will still find the petit fours that I had planned for the party in the refrigerator in the break room. they will be at your disposal.
URL:https://fermi.univ-tlse3.fr/event/electronic-transitions-statistics-and-digital-tools-for-quantum-chemistry-mickael-veril-lcpq-theses-9-decembre-9h/
LOCATION:salle de séminaire 3ème étage\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,HDR / Thesis,LCPQ
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211209T140000
DTEND;TZID=Europe/Paris:20211210T120000
DTSTAMP:20260514T140458
CREATED:20211205T130228Z
LAST-MODIFIED:20211206T095144Z
UID:6864-1639058400-1639137600@fermi.univ-tlse3.fr
SUMMARY:Mini-symposium (LCPQ / 9-10 december)
DESCRIPTION:The speakers (and titles) are: \n– Elise Dumont (ENS\, Lyon) « Modelling radicals-induced and light-induced damage in DNA”\n– Nicolas Ferre (Universite Aix-Marseille) « Why hydroxyl matters: NMR and UV-visible spectra of anthraquinones »\n– Denis Jacquemin (CEISAM\, Nantes) « Modelling Excited-State Intramolecular Proton Transfer in Organic Dyes »\n– Adele Laurent (CEISAM\, Nantes) « Molecular simulations of ligand-protein interactions » \nThe first two presentations will be held in the IRSAMC seminar room (3rd floor Bat. 3R1) from 14:00 to 17:00 on Thursday afternoon\, while the last two talks will be held in Room 20 (ground floor Bat. 3R1) from 9:00 to 2:00 on Friday morning\nA coffee break has been organised for each session. \n 
URL:https://fermi.univ-tlse3.fr/event/mini-symposium-lcpq-9-10-december/
CATEGORIES:Events,LCPQ,Symposium / Congress
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211214T140000
DTEND;TZID=Europe/Paris:20211214T160000
DTSTAMP:20260514T140458
CREATED:20211209T085429Z
LAST-MODIFIED:20211209T085548Z
UID:7313-1639490400-1639497600@fermi.univ-tlse3.fr
SUMMARY:Hydrodynamics of the one-dimensional Bose gas : atom losses (Jerôme Dubail / LPT / Seminar). - 14/12\, 14H.
DESCRIPTION:Jerôme Dubail (LPCT\, Nancy) \nI will briefly introduce “Generalized Hydrodynamics”\, the hydrodynamic description of one-dimensional integrable systems [1\,2]\, and review the experimental results [3\,4] obtained by the groups of I. Bouchoule in Palaiseau and D. Weiss in Penn State. One important experimental effect not taken into account in GHD is the atom losses : I will discuss perspectives on how to include these [5\,6\,7]. \n[1] O. Castro-Alvaredo\, B. Doyon\, T. Yoshimura\, “Emergent hydrodynamics in integrable quantum systems out of equilibrium »\, Phys. Rev. X 6\, 041065 (2016) \n[2] B. Bertini\, M. Collura\, J. de Nardis\, M. Fagotti\, “Transport in Out-of-Equilibrium XXZ Chains : Exact Profiles of Charges and Currents »\, Phys. Rev. Lett. 117\, 207201 (2016) \n[3] M. Schemmer\, I. Bouchoule\, B. Doyon\, J. Dubail\, “Generalized Hydrodynamics on an Atom Chip”\, Phys. Rev. Lett. 122\, 090601 (2019) \n[4] N. Malvania\, Y. Zhang\, Y. Le\, J. Dubail\, M. Rigol\, D. Weiss\, “Quantum Generalized Hydrodynamics »\, Science 373\, 1129 (2021) \n[5] I. Bouchoule\, B. Doyon\, J. Dubail\, “The effect of atom losses on the distribution of rapidities in the one-dimensional Bose gas”\, SciPost Phys. 9\, 044 (2020) \n[6] A. Hutsalyuk\, B. Pozsgay\, “Integrability breaking in the one dimensional Bose gas : Atomic losses and energy loss”\, Phys. Rev. E 103\, 042121 (2021) \n[7] I. Bouchoule and J. Dubail\, « Breakdown of Tan’s relation in lossy one-dimensional Bose gases »\, Phys. Rev. Lett. 126\, 160603 (2021)
URL:https://fermi.univ-tlse3.fr/event/tba-jerome-dubail-lpt-seminar-14-12-14h/
LOCATION:Visio
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211217T113000
DTEND;TZID=Europe/Paris:20211217T130000
DTSTAMP:20260514T140458
CREATED:20211209T085404Z
LAST-MODIFIED:20211209T085404Z
UID:7618-1639740600-1639746000@fermi.univ-tlse3.fr
SUMMARY:Fragilité des Systèmes Économiques et Financiers : La Vision d'un Physicien (Michael Benzaquen / SFP / Seminar) – 17/12\, 11H30
DESCRIPTION:Michael Benzaquen :  (Chaire EconophysiX – École polytechnique) \nTéléchargez la présentation du séminaire: Seminaire_SFP_Benzaquen_17dec21
URL:https://fermi.univ-tlse3.fr/event/fragilite-des-systemes-economiques-et-financiers-la-vision-dun-physicien-michael-benzaquen-sfp-seminar-17-12-11h30/
LOCATION:Amphi CONCORDE\,  Bâtiment U4\, Amphithéâtre Concorde - Université Paul Sabatier\, Toulouse\, 31400\, France
CATEGORIES:Events,Seminars,SFP / SFC
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