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DTSTART;TZID=Europe/Paris:20260507T110000
DTEND;TZID=Europe/Paris:20260507T120000
DTSTAMP:20260504T072537Z
CREATED:20260503T083622Z
LAST-MODIFIED:20260504T072537Z
UID:12109-1778151600-1778155200@fermi.univ-tlse3.fr
SUMMARY:Réseaux de tenseurs pour des géométries arbitraires : applications aux systèmes frustrés et à la simulation de circuits quantiques. - (Saeed Jahromi / LPT / Seminar). -7/05/2026\, 14H
DESCRIPTION:Séminaire LPT \nSaeed Jahromi (IASBS) \nSeminar LPT\, 7/05/2026\, 11H\, 3R4\, salle de conférence \nSummary\nIn this talk\, I will present recent advances in tensor network (TN) methods for the accurate simulation of quantum many-body systems on arbitrary geometries. In particular\, I will discuss how to overcome the challenges of applying TN methods to different lattice structures and dimensions. I will then present three representative applications: (i) the Heisenberg antiferromagnet on the square–kagome lattice\, where frustration stabilizes nontrivial valence-bond crystal phases\, (ii) the Kitaev–Heisenberg model on the bilayer honeycomb lattice\, highlighting competing magnetic and quantum spin liquid phases\, and (iii) tensor-network-based simulation of quantum circuits relevant to recent IBM experiments.
URL:https://fermi.univ-tlse3.fr/event/tba-csaeed-jahromi-lpt-seminar-7-05-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
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DTSTART;TZID=Europe/Paris:20260507T110000
DTEND;TZID=Europe/Paris:20260507T123000
DTSTAMP:20260504T072350Z
CREATED:20260503T074751Z
LAST-MODIFIED:20260504T072350Z
UID:12083-1778151600-1778157000@fermi.univ-tlse3.fr
SUMMARY:Existing experiments suffice to indirectly verify the quantum essence of gravity. - ( Martin Plavala/ LCAR / Seminar). - 7/05/2026\, 11H
DESCRIPTION:Séminaire LCAR \nMartin Plavala\,  Institut für Theoretische Physik\, Leibniz Universität Hannover\, Hannover\, Germany \nSummary\nThe gravity-mediated entanglement experiments employ concepts from quantum information to argue that if entanglement due to gravitational interaction is observed\, then gravity cannot be described by a classical system. However\, the proposed experiments remain beyond out current technological capability\, with optimistic projections placing the experiment outside of short-term future. Here we argue that current matter-wave interferometers are sufficient to indirectly prove that gravitational interaction creates entanglement between two systems. Specifically\, we prove that if we experimentally verify the Schrödinger equation for a single delocalized system interacting gravitationally with an external mass\, then\, under one of two reasonable assumptions\, the time evolution of two delocalized systems will lead to gravity-mediated entanglement.
URL:https://fermi.univ-tlse3.fr/event/existing-experiments-suffice-to-indirectly-verify-the-quantum-essence-of-gravity-martin-plavala-lcar-seminar-7-05-2026-11h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LCAR,Seminars
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