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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260113T140000
DTEND;TZID=Europe/Paris:20260113T150000
DTSTAMP:20260412T153408
CREATED:20260112T060204Z
LAST-MODIFIED:20260112T084104Z
UID:11741-1768312800-1768316400@fermi.univ-tlse3.fr
SUMMARY:Quantum many-body dynamics and the quest for massive entanglement production. - (Tommaso Roscilde / LPT / Seminar). - 13/01/2026\, 14H
DESCRIPTION:Séminaire LPT \nTommaso Roscilde (EPFL) \nSeminar LPT\, 13/01/2026\, 14H\, 3R4\, salle de conférence \nSummary : \nMany-body quantum entanglement is the fundamental trait which separates our macroscopic world and the microscopic one\, in which Schrödinger’s cats do exist — they are simply too small to meow\, for the moment… Many-body entanglement is also the central resource of long-sought quantum technologies of next generation. Identifying effective ways to produce many-body entanglement over the largest possible scales\, and in the shortest possible times\, is clearly a grand challenge for quantum many-body theory and non-equilibrium quantum statistical mechanics. \nIn this talk I will discuss how turning to long-range interacting systems is a natural choice for effective entanglement production. The onset of large-scale multipartite entanglement corresponds in general to the relaxation of the system towards long-range order; and the latter is typically associated with thermalisation of closed quantum systems. I will show that this point of view\, while valid in some cases — such as the quasi-adiabatic preparation of low-energy states — may not be appropriate for the most effective forms of entanglement dynamics. The latter defy the conventional classification schemes (ergodic vs. non-ergodic) of quantum dynamics\, and suggest a more inclusive classification\, which is already accepted in classical physics. \n\n\n\n 
URL:https://fermi.univ-tlse3.fr/event/tba-tommaso-roscilde-lpt-seminar-13-01-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260115T140000
DTEND;TZID=Europe/Paris:20260115T153000
DTSTAMP:20260412T153408
CREATED:20260115T074524Z
LAST-MODIFIED:20260115T143009Z
UID:11865-1768485600-1768491000@fermi.univ-tlse3.fr
SUMMARY:The role of spin fluctuations in quantum materials. - (Caitlin Duffy /  LNCMI / Seminar). - 15/01/2026\, 14H
DESCRIPTION:Seminar LNCMI \nCaitlin Duffy   \nSeminar LNCMI\, 15/01/2026\, 14H\, seminar room and Visio \nSummary\nSpin fluctuations are seen as crucial in a wealth of quantum materials and have been theoretically shown to give rise to non-Fermi liquid behaviour and unconventional superconductivity [1\,2]. However\, their direct observation is a significant challenge\, particularly in high magnetic fields where many correlated systems exhibit unusual behaviour. \nThese fluctuations can be indirectly seen in high fields using techniques such as ultrasound and magnetotransport. Direct observation has recently been made possible using resonant torsion magnetometry (RTM) – a cantilever-based technique that measures spin fluctuations through the anisotropic magnetic susceptibility of a sample. RTM was developed at the NHFML in Los Alamos and has been used to observe transverse magnetic fluctuations preceding the field-induced superconducting phase of UTe2 [3]\, and to provide support in favour of the quantum spin liquid state in RuCl3 [4]. \nIn this seminar I will introduce this novel and powerful technique that I would like to bring the LNCMI. I will discuss how I aim to complement RTM studies with ultrasound and magnetotransport measurements to answer several long-standing questions about the iron pnictides and iron selenides. These two classes of strange metal both host unconventional superconductivity and quantum criticality. However\, the magnetically-ordered phase present in the pnictides\, and theoretically assumed to induce its unconventional behaviour\, is absent in the selenides. \nAdditionally\, I will briefly mention how this technique can be of interest within the wider community of the LNCMI and the EMFL. \n[1] Kontani\, Rep. Prog. Phys. 71\, 026501 (2009)\n[2] Scalapino\, J. Low Temp. Phys. 117\, 179-188 (1999)\n[3] Zambra et al.\, arXiv:2506.08984\n[4] Modic et al.\, Nat. Phys. 17\, pages 240–244 (2021) \nZoom: https://univ-grenoble-alpes-fr.zoom.us/j/94228207316?pwd=khTdznxeFy1ZUYkYftQ0QSox6Fz3iK.1
URL:https://fermi.univ-tlse3.fr/event/the-role-of-spin-fluctuations-in-quantum-materials-caitlin-duffy-lncmi-seminar-15-01-2026-14h/
LOCATION:Salle de seminaire du LNCMI\, Champs Magnétiques Pulsés\, 143 avenue de Rangueil\, Toulouse\, France
CATEGORIES:Events,LNCMI,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260122T140000
DTEND;TZID=Europe/Paris:20260122T153000
DTSTAMP:20260412T153408
CREATED:20260122T141518Z
LAST-MODIFIED:20260122T143104Z
UID:11869-1769090400-1769095800@fermi.univ-tlse3.fr
SUMMARY:Probing the Strange Metal phase of a cuprate with nuclear magnetic resonance. - (Benjamin Costarella /  LNCMI / Seminar). - 22/01/2026\, 14H
DESCRIPTION:Seminar LNCMI \nBenjamin Costarella \, 1st year PhD student of Marc-Henri Julien \nSeminar LNCMI\, 22/01/2026\, 14H\, Visio \nAbstract\nCuprates (high-temperature superconductors) host in their phase diagram a so-called strange metal regime at doping levels beyond the pseudogap phase.\nIn this regime\, the electrical resistivity is linear in temperature down to the lowest temperatures\, in contrast with the quadratic dependence in conventional metals. [1] \nThe spin fluctuations in the strange metal regime have been sparsely investigated\, and the two nuclear magnetic resonance (NMR) studies in the litterature [2\,3] are partly contradictory\, hindering a coherent picture of the strange metal phase. \nHere\, we probe the low-energy spin fluctuations in the cuprate La1.75Sr0.25CuO4 using NMR and high magnetic fields to suppress superconductivity. Our results uncover a divergent dynamical spin susceptibility at low frequency χ′′ (Q\,ω→0) not captured in earlier studies\, pointing to a possible connection between low-energy spin dynamics and the strange metal phenomenology. » \n[1] Cooper et al. Science\, 323\, 5914. pp. 603-607 (2009)\n[2] Ohsugi et al. JPSJ\, 63\, 2\, pp. 700-715 (1993)\n[3] Itoh et al. JPSJ\, 67\, 9\, pp. 3018-3020 (1998) \nLien Zoom : https://univ-grenoble-alpes-fr.zoom.us/j/94228207316?pwd=khTdznxeFy1ZUYkYftQ0QSox6Fz3iK.1
URL:https://fermi.univ-tlse3.fr/event/probing-the-strange-metal-phase-of-a-cuprate-with-nuclear-magnetic-resonance-benjamin-costarella-lncmi-seminar-22-01-2026-14h/
LOCATION:Visio
CATEGORIES:Events,LNCMI,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260123T110000
DTEND;TZID=Europe/Paris:20260123T123000
DTSTAMP:20260412T153408
CREATED:20260110T081455Z
LAST-MODIFIED:20260112T083846Z
UID:11851-1769166000-1769171400@fermi.univ-tlse3.fr
SUMMARY:A Neural Network–Assisted Exploration of the Complex Landscape of Biomolecules with First-Principles Accuracy. - (Jer-Lai Kuo/ LCAR-LCPQ / Seminar). - 23/01/2026\, 11H
DESCRIPTION:Séminaire LCAR-LCPQ \nJer-Lai Kuo\,  Director of the CECAM-TW node; Research Fellow\, Institute of Atomic and Molecular Sciences\, Academia Sinica \nSummary :\nStructure of simple biomolecules (such as peptides and saccharides) are known to be flexible. While molecular dynamics with empirical force fields have gained plenty of success\, however\, it’s applicability to chemical reaction is often limited. While First-Principle methods (such as DFT) are powerful – the simulation length is limited due to the high cost of DFT. In a few studies on mono-saccharides\, we have proposed a self-adapting scheme to train NNP (neural network potential) to reach quantum chemistry accuracy of 1 kcal/mol based on a multi-model approach. A typical structural searching algorithm is to begin with more efficient (but less accurate) methods such as empirical force field or semi-empirical modes (for example DFTB) to explore the energy scape of the flexible bio-molecules. For a given aldohexose (AH)\, we can find 500~100 structurally distinct conformers covering an energy range of ~ 150 kcal/mol. We demonstrated that from these trajectories (even if some of them lead to the same local minima)\, we can efficiently generate a data set in the order of 40k to 50k – this energetically and structurally distinct data set can be used to train an NNP with an accuracy of 1 kJ/mol in energy and 1 kJ/mol/A in gradient. A self-adapt scheme is to cover all kinds aldose and ketose with the same accuracy by adding a small fraction of data from new types of aldoses and ketoses. The NNP trained in this way is decent enough to perform molecular dynamics simulations that cover an energy range of more than 200 kJ/mol. \n\nReferences\n[1] S. Jindal\, P-J Hsu\, H. T. Phan\, P-K Tsou\, J-L Kuo\, Phys. Chem. Chem. Phys. 24\, 27263 (2022)\n[2] P-K Tsou\, Hai T. Huynh\, H. T. Phan\, J-L Kuo\, Phys. Chem. Chem. Phys. 25\, 3332 (2023)\n[3] H. T. Phan\, P-K Tsou\, P-J Hsu\, J-L Kuo\, Phys. Chem. Chem. Phys. 25\, 5817 (2023)\n[4] H-T Phan\, P-K Tsou\, P-J Hsu and J-L Kuo\, Phys. Chem. Chem. Phys. 26\, 9556 (2024)\n[5] H-C Dong\, P-J Hsu and J-L Kuo\, Phys. Chem. Chem. Phys. 26\, 11125 (2024)\n[6] P-K Tsou\, H. T. Phan\, J-L Kuo\, Phys. Chem. Chem. Phys. 27\, 4355 (2025)\n[7] G. Song\, H-N Jeon\, J-L Kuo and H. Kang\, Phys. Chem. Chem. Phys. 27\, 14444 (2025)\n[8] H-T Phan\, P-K Tsou\, H-C Dong\, P-J Hsu and J-L Kuo\, Phys. Chem. Chem. Phys. 27\, 11780 (2025)\n[9] C. Masellis\, N. Khanal\, M. Kamrath\, D. Clemmer\, T. R. Rizzo\, J. Am. Soc. Mass Spectrom. 28\, 2217 (2017)
URL:https://fermi.univ-tlse3.fr/event/a-neural-network-assisted-exploration-of-the-complex-landscape-of-biomolecules-with-first-principles-accuracy-jer-lai-kuo-lcar-lcpq-seminar-23-01-2026-11h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LCAR,LCPQ,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260123T140000
DTEND;TZID=Europe/Paris:20260123T153000
DTSTAMP:20260412T153408
CREATED:20260122T140003Z
LAST-MODIFIED:20260122T143218Z
UID:11876-1769176800-1769182200@fermi.univ-tlse3.fr
SUMMARY:High-Precision Spectroscopy Applied to the Study of Nuclear Structure of Exotic Nuclei. - (Pierre Lassègues /  LNCMI / Seminar). - 23/01/2026\, 14H
DESCRIPTION:Seminar LNCMI \nPierre Lassègues   \nSeminar LNCMI\, 23/01/2026\, 14H\, seminar room and Visio \nZoom : https://univ-grenoble-alpes-fr.zoom.us/j/92909698065?pwd=clRQvuewPayHBFZjaglEKZagCbe1hj.1
URL:https://fermi.univ-tlse3.fr/event/high-precision-spectroscopy-applied-to-the-study-of-nuclear-structure-of-exotic-nuclei-pierre-lassegues-lncmi-seminar-15-01-2026-14h/
LOCATION:Salle de seminaire du LNCMI\, Champs Magnétiques Pulsés\, 143 avenue de Rangueil\, Toulouse\, France
CATEGORIES:Events,LNCMI,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260127T140000
DTEND;TZID=Europe/Paris:20260127T150000
DTSTAMP:20260412T153408
CREATED:20260126T094217Z
LAST-MODIFIED:20260126T095057Z
UID:11794-1769522400-1769526000@fermi.univ-tlse3.fr
SUMMARY:Cicatrices quantiques à N corps en présence de sauts dépendant de la différence de densité. - (William Faugno / LPT / Seminar). - 27/01/2026\, 14H
DESCRIPTION:Séminaire LPT \nWilliam Faugno (LKB) \nSeminar LPT\, 27/01/2026\, 14H\, 3R4\, salle de conférence \nAbstract\nIt has been observed that isolated quantum systems often still produce measured values consistent with thermalization. This is unexpected due to the lack of a notion of chaos or ergodicity and the unitary dynamics of the quantum theory which is at its core linear. The conditions under which we can expect isolated quantum systems to thermalize were laid out in the eigenstate thermalization hypothesis (ETH)\, which has generally been found to hold in a variety of systems. Still\, notable violations of the ETH have been identified where a seemingly chaotic many-body quantum system exhibits some nonthermal behavior. In this talk\, I will introduce the concept of quantum many-body scars (QMBS)\, a phenomenon in which a small subset of eigenstates violates the ETH and promote nonthermal dynamics. I will then present theoretical results on a bosonic Hamiltonian with a density-dependent hopping and describe two distinct mechanisms for scar formation that arise in this model. These mechanisms provide insight into the conditions under which QMBS can be expected to occur.
URL:https://fermi.univ-tlse3.fr/event/tba-william-faugno-lpt-seminar-27-01-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260129T140000
DTEND;TZID=Europe/Paris:20260129T150000
DTSTAMP:20260412T153408
CREATED:20260124T094220Z
LAST-MODIFIED:20260126T094328Z
UID:11880-1769695200-1769698800@fermi.univ-tlse3.fr
SUMMARY:Magnetic field sorting of superconducting graphite particles with Tc > 400K. - (Manuel Nunez-Regueiro /  LNCMI / Seminar). - 29/01/2026\, 14H
DESCRIPTION:Seminar LNCMI \nManuel Nunez-Regueiro \, Institut Néel \nSeminar LNCMI\, 29/01/2026\, 14H\, Visio \nAbstract\nIt has been claimed that graphite hosts superconductivity at room temperature\, although all efforts to isolate it have been vain.  Here we report separation methods that use magnetic field gradients to sort the superconducting from  normal grains out of industrial graphite powders. We have obtained a concentrate of above room temperature superconducting particles. Electrical resistance measurements on agglomerates of sorted grains of synthetic\, natural and spectroscopically pure graphite all show transition temperatures up Tc\,onset ∼700 K with  zero resistance up to ∼500 K. Magnetization measurements confirm these values through jumps  at Tc in the zero field cooled curves\, and by the occurrence of diamagnetic hysteretic cycles  shrinking with temperature. Transmission electron microscope images yield a hint of the novel structure of these grains. \nLieu : Salle Pauthenet in Grenoble \nLien Zoom : https://univ-grenoble-alpes-fr.zoom.us/j/94228207316?pwd=khTdznxeFy1ZUYkYftQ0QSox6Fz3iK.1
URL:https://fermi.univ-tlse3.fr/event/magnetic-field-sorting-of-superconducting-graphite-particles-with-tc-400k-manuel-nunez-regueiro-lncmi-seminar-29-01-2026-14h/
LOCATION:Visio
CATEGORIES:Events,LNCMI,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260130T110000
DTEND;TZID=Europe/Paris:20260130T123000
DTSTAMP:20260412T153408
CREATED:20260130T054820Z
LAST-MODIFIED:20260130T064646Z
UID:11854-1769770800-1769776200@fermi.univ-tlse3.fr
SUMMARY:Interactions robotiques avec les surfaces planétaires et celles des petits corps : défis et enseignements tirés. - (Cecily Sunday / FeRMI / Séminaire). -30/01/2026\, 11H
DESCRIPTION:Séminaire FeRMI \nCecily Sunday\,  ISAE-Supaéro \nNote : Cecily Sunday fait partie des cinq chercheuses américaines ayant bénéficié en 2025 du dispositif d’accueil « Toulouse Safe place for Science » porté par TIRIS\, la Région Occitanie et l’UT (https://tiris.univ-toulouse.fr/aap/toulouse-safe-place-for-science-fr/) \nRésumé :\nLes opérations spatiales robotiques in situ\, telles que l’atterrissage\, l’échantillonnage et la mobilité de surface\, ont fourni des informations précieuses sur la formation et l’évolution des corps célestes de notre Système solaire. Toutefois\, en raison des importantes variations de gravité\, d’atmosphère et des propriétés de surface\, les interactions entre les engins spatiaux et le sol se déroulent rarement comme prévu. Dans ce séminaire\, nous discuterons des défis associés aux opérations robotiques sur les surfaces planétaires et celles des petits corps dans des environnements à faible gravité\, en tirant des enseignements des missions passées vers la Lune\, Mars\, les comètes et les astéroïdes. Nous nous concentrerons sur les interactions avec les matériaux granulaires (régolithe) et montrerons comment les théories et modèles existants peuvent être révisés afin de mieux rendre compte du rôle de la gravité. \n 
URL:https://fermi.univ-tlse3.fr/event/interactions-robotiques-avec-les-surfaces-planetaires-et-celles-des-petits-corps-defis-et-enseignements-tires-cecily-sunday-fermi-seminaire-30-01-2026-11h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,FeRMIsem,Seminars
END:VEVENT
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