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DTSTART;TZID=Europe/Paris:20220510T140000
DTEND;TZID=Europe/Paris:20220510T153000
DTSTAMP:20260424T131639
CREATED:20220508T081715Z
LAST-MODIFIED:20220516T071807Z
UID:8073-1652191200-1652196600@fermi.univ-tlse3.fr
SUMMARY:Fermionic Entanglement Entropy from Nonequilibrium Work (Jonathan D’Emidio/ LPT / Seminar). - 10/05/2022\, 14H
DESCRIPTION:Jonathan D’Emidio (DIPC\, Saint-Sébastien) \nAbstract : Computing entanglement entropies in strongly interacting many-body systems in two or more dimensions is a notoriously difficult task. Recently\, however\, a Monte Carlo method based on Jarzynski’s nonequilibrium work equality has enabled highly efficient calculations in quantum spin systems [1]. I will show how this concept can be extended to determinental quantum Monte Carlo (DQMC) simulations of fermions\, based on the decomposition introduced by T. Grover [2]. Here the nonequilibrium method entirely avoids the severe limitations faced by existing DQMC techniques\, which manifest themselves quite differently from the spin case. As a benchmark study I will provide data from T=0 projector simulations of the honeycomb Hubbard model. \n\n[1] J. D’Emidio\, Entanglement Entropy from Nonequilibrium Work\, Phys. Rev. Lett. 124\, 110602 (2020) \n[2] T. Grover\, Entanglement of Interacting Fermions in Quantum Monte Carlo Calculations\, Phys. Rev. Lett. 111\, 130402 (2013) \n\n  \n\n 
URL:https://fermi.univ-tlse3.fr/event/fermionic-entanglement-entropy-from-nonequilibrium-work-jonathan-demidio-lpt-seminar-10-05-2022-14h/
LOCATION:salle de séminaire 3ème étage\, Bâtiment 3r1 Université Toulouse III\, Toulouse\, 31400\, France
CATEGORIES:Events,LPT,Seminars
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