BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//FeRMI - ECPv6.16.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://fermi.univ-tlse3.fr
X-WR-CALDESC:Évènements pour FeRMI
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251009T110000
DTEND;TZID=Europe/Paris:20251009T123000
DTSTAMP:20260523T032700
CREATED:20251009T061615Z
LAST-MODIFIED:20251009T061655Z
UID:11702-1760007600-1760013000@fermi.univ-tlse3.fr
SUMMARY:(Més)usages des LLM pour la production d’articles scientifiques. - (Ophélie Fraisier-Vannier / CEMES / Seminar). - 9/10/2025\, 11H
DESCRIPTION:Séminaire du CEMES \nOphélie Fraisier-Vannier Maitresse de conférence à l’IRIT \nSeminar CEMES\, 9/10/2025\, 11H \nSummary \nL’explosion de l’IA générative ces dernières années a impacté l’ensemble de la société\, notamment via les nouvelles possibilités présentées par les outils de génération de texte dont ChatGPT est le représentant le plus connu.\nLe monde de la recherche n’est pas épargné par ce phénomène.\nDans cette présentation\, je parlerai de la façon dont cet outil a été mobilisé par les chercheurs\, en me concentrant plus particulièrement sur ses usages dans les pratiques de recherche discutables autour de la publication scientifique\, et des questions que cela soulève sur le monde de la recherche dans son ensemble. \nhttps://cnrs.zoom.us/j/95496107019?pwd=PnPs0Ek8HZizsY9zR37eQtD8UmaJWM.1
URL:https://fermi.univ-tlse3.fr/event/mesusages-des-llm-pour-la-production-darticles-scientifiques-ophelie-fraisier-vannier-cemes-seminar-9-10-2025-11h/
LOCATION:Visio
CATEGORIES:CEMES,Events,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251014T140000
DTEND;TZID=Europe/Paris:20251014T150000
DTSTAMP:20260523T032700
CREATED:20251013T085956Z
LAST-MODIFIED:20251013T125941Z
UID:11648-1760450400-1760454000@fermi.univ-tlse3.fr
SUMMARY:Hybrid between biologically inspired and quantum-inspired many-body states. -(Miha Srdinšekr / LPT / Seminar). - 14/10/2025\, 14H
DESCRIPTION:Séminaire LPT \nMiha Srdinšek (CEA) \nSeminar LPT\, 14/10/2025\, 14H\, 3R4\, salle de conférence \nSummary \nDeep neural networks can represent very different sorts of functions\, including complex quantum many-body states. Tensor networks can also represent these states\, have more structure and are easier to optimize. However\, they can be prohibitively costly computationally in two or higher dimensions. Here\, we propose a generalization of the perceptron – the perceptrain – which borrows features from the two different formalisms. We construct variational many-body ansatz from a simple network of perceptrains. The network can be thought of as a neural network with a few distinct features inherited from tensor networks. These include efficient local optimization akin to the density matrix renormalization algorithm\, instead of optimizing of all the parameters at once; the possibility to dynamically increase the number of parameters during the optimization; the possibility to compress the state to avoid overfitting; and a structure that remains quantum-inspired. We showcase the ansatz using a combination of Variational Monte-Carlo (VMC) and Green Function Monte-Carlo (GFMC) on a 10×10 transverse field quantum Ising model with a long range 1/r^6 antiferromagnetic interaction. The model corresponds to the Rydberg (cold) atoms platform proposed for quantum annealing. We consistently find a very high relative accuracy for the ground state energy\, around 10^{-5} for VMC and 10^{-6} for GFMC in all regimes of parameters\, including in the vicinity of the quantum phase transition. We used very small ranks (~2÷5 ) of perceptrains\, as opposed to multiples of thousand used in matrix product states. The optimization of the energy was robust with respect to the choice of initial conditions and hyper-parameters\, in contrast to a common experience when using neural network wave functions.
URL:https://fermi.univ-tlse3.fr/event/hybrid-between-biologically-inspired-and-quantum-inspired-many-body-states-miha-srdinsekr-lpt-seminar-14-10-2025-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251017T110000
DTEND;TZID=Europe/Paris:20251017T123000
DTSTAMP:20260523T032700
CREATED:20251015T140039Z
LAST-MODIFIED:20251015T140648Z
UID:11705-1760698800-1760704200@fermi.univ-tlse3.fr
SUMMARY:Quantum simulation of fermionic matter at the single-atom level. - (Tarik YEFSAH / Seminar/ SFP). - 17/10/2025\, 11H
DESCRIPTION:Séminaire SFP \nTarik YEFSAH\, LKB\, Salle de Conférence\, Bât. 3R4\nSummary:\nThe last decades have seen the emergence of ultracold atom experiments as powerful platforms for quantum simulation of complex many-body systems\, owing to their ability to probe large ensembles of particles in a well-characterized\, tunable\, and isolated environment. Among the various quantum many-body problems within reach of atom-based quantum simulators\, interacting fermionic systems play a special role. While they constitute a cornerstone of quantum matter covering a broad fundamental and technological scope\, their understanding however still represents a major challenge for existing theoretical approaches\, which are widely plagued by the infamous\nsign-problem. In this talk\, I will present our recent work on quantum gas microscopy of fermionic many-body systems in continuous space\, and how we can characterize them at previously inaccessible levels of resolution and control. Our approach offers radically new possibilities for the exploration of strongly interacting Fermi gases at the single-atom level. \nAffiche presentation séminaire SFP\,Tarik YEFSAH \n\n\n\n 
URL:https://fermi.univ-tlse3.fr/event/quantum-simulation-of-fermionic-matter-at-the-single-atom-level-tarik-yefsah-seminar-sfp-17-10-2025-11h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,Seminars,SFP / SFC
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251021T140000
DTEND;TZID=Europe/Paris:20251021T153000
DTSTAMP:20260523T032700
CREATED:20251015T132553Z
LAST-MODIFIED:20251015T132553Z
UID:11723-1761055200-1761060600@fermi.univ-tlse3.fr
SUMMARY:Mouvements collectifs et contrôle externe dans des gouttes actives. -(Gabriel Ramos / LPT / Seminar). - 21/10/2025\, 14H
DESCRIPTION:Séminaire LPT \nGabriel Ramos (Softmat Toulouse) \nSeminar LPT\, 21/10/2025\, 14H\, 3R4\, salle de conférence \nSummary\nThe collective motions performed by self propelled particles\, such as flocks of birds or schools of fish\, are studied in physics within the domain of active matter. Using the precision and low cost of microfluidics\, living and synthetic microparticles have become an ideal playground to study these active matter systems. \nIn this talk\, we will present two experiments using bacterial suspensions to produce active droplets. The objective of these experiments is to understand how the local-scale microactivity (the collective motions resulting from bacterial-self-organization) is able to perform macromovements at the scale of the confining droplet\, which is about 100 times the size of a single bacterium. In other words\, we study how we can extract useful work from these confined suspensions. \nFirst\, we will show that the confinement of a suspension of Escherichia coli (E. coli) in a water-in-oil emulsion leads to bacterially propelled droplets that perform a persistent random walk. Secondly\, we will show that under the action of a constant magnetic field\, magnetotactic bacteria (MTB) confined in a water-in-oil emulsion self-assemble into a rotary motor that applies a torque on the external oily phase. A vortex collective motion is formed at the scale of the confining droplet size\, which is perpendicular to the magnetic field and is reversible when inverting the magnetic field direction. Finally\, we will briefly introduce a synthetic system of active droplets using liquid crystals\, showing their ability to reproduce living features such as chemotaxis\, light sensing and collective motions.
URL:https://fermi.univ-tlse3.fr/event/mouvements-collectifs-et-controle-externe-dans-des-gouttes-actives-gabriel-ramos-lpt-seminar-21-10-2025-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251023T140000
DTEND;TZID=Europe/Paris:20251023T170000
DTSTAMP:20260523T032700
CREATED:20251015T080745Z
LAST-MODIFIED:20251208T090853Z
UID:11806-1761228000-1761238800@fermi.univ-tlse3.fr
SUMMARY:Manipulation de l’exciton neutre dans les hétérostructures de dichalcogénures de métaux de transition . - (Hassan Lamsaadi / CEMES / These). - 23/10/2025
DESCRIPTION:Soutenance de thèse \nHassan Lamsaadi\, Salle de conférence du CEMES \nCompositition du jury: \n\n\n\n\n\n\nM. Stéphane BERCIAUD- – Rapporteur\, Université de Strasbourg\nM. Ermin MALIC  – Rapporteur\, Université Philipps\, Marburg\nMme Laurence RESSIER  – Examinatrice\, LPCNO-INSA\, Toulouse\nM. Olivier PIERRE-LOUIS – Examinateur\, ILM-CNRS\, Lyon\nM. Jean-Marie POUMIROL – Co-Directeur de thèse\, CEMES\nM. Nicolas COMBE – Invité\, Université de Toulouse\nM. Vincent PAILLARD – Invité\, Université de Toulouse
URL:https://fermi.univ-tlse3.fr/event/manipulation-de-lexciton-neutre-dans-les-heterostructures-de-dichalcogenures-de-metaux-de-transition-hassan-lamsaadi-cemes-these-23-10-2025/
LOCATION:salle de conférence du CEMES\, CEMES - 29\, rue Jeanne Marvig BP 94347\, Toulouse\, 31055\, France
CATEGORIES:CEMES,Events,HDR / Thesis
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20251024T100000
DTEND;TZID=Europe/Paris:20251024T130000
DTSTAMP:20260523T032700
CREATED:20251009T082932Z
LAST-MODIFIED:20251208T093633Z
UID:11808-1761300000-1761310800@fermi.univ-tlse3.fr
SUMMARY:Approches d’apprentissage automatique pour la simulation de la cristallisation des nanoparticules. - (Quentin Gromoff / CEMES / These). - 24/10/2025\, 10H00
DESCRIPTION:Soutenance de thèse \nQuentin Gromoff\, Salle de conférence du CEMES \nCompositition du jury: \n\n\n\n\n\n\nMme Christine Mottet– Rapporteure\, CNRS\nM. Jérôme Creuze – Rapporteur\, Université Paris-Sud\nMme Émilie Gaudry\, – Examinatrice\, Université de Lorraine\nM. Mathias Rapacioli – Examinateur\, CNRS\nM. Christophe GATEL – Directeur de thèse\, CEMES\nMme Magali Benoit – Co-directrice de thèse\, CNRS\nM. Julien Lam –Co-directeur de thèse\, CNRS
URL:https://fermi.univ-tlse3.fr/event/approches-dapprentissage-automatique-pour-la-simulation-de-la-cristallisation-des-nanoparticules-quentin-gromoff-cemes-these-24-10-2025-10h00/
LOCATION:salle de conférence du CEMES\, CEMES - 29\, rue Jeanne Marvig BP 94347\, Toulouse\, 31055\, France
CATEGORIES:CEMES,Events,HDR / Thesis
END:VEVENT
END:VCALENDAR