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DTSTART;TZID=Europe/Paris:20260428T140000
DTEND;TZID=Europe/Paris:20260428T150000
DTSTAMP:20260427T211548
CREATED:20260420T070425Z
LAST-MODIFIED:20260422T070708Z
UID:12189-1777384800-1777388400@fermi.univ-tlse3.fr
SUMMARY:Stockage et transmission de l’information sous bruit markovien. - (Satvik Singh / LPT / Seminar). - 28/04/2026\, 14H
DESCRIPTION:Séminaire LPT \nSatvik Singh\, (Université technique de Munich) \nSeminar LPT\, 28/04/2026\, 14H\, 3R4\, salle de conférence \nSummary\nThis talk is about estimating the quantum and classical capacities of quantum Markov semigroups acting on finite-dimensional quantum systems. We show that in the limit of infinite time\, the capacities can be efficiently computed in terms of the structure of the peripheral space of the semigroup\, are strongly additive\, and satisfy the strong converse property. We also establish convergence bounds to show that the infinite-time capacities are reached after time scaling quadratically with the system dimension. From the perspective of data storage\, our analysis provides tight bounds on the number of bits or qubits that can be reliably stored for long times in a quantum memory device that is experiencing Markovian noise. From the perspective of point-to-point communication between two spatially separated parties\, our analysis provides efficiently computable bounds on the optimal rate at which bits or qubits can be reliably transmitted via ‘long’ Markovian communication channels\, both in the finite block-length and asymptotic regimes. In order to keep the talk more accessible\, I will begin with a brief introduction on the subject of quantum channel capacities.
URL:https://fermi.univ-tlse3.fr/event/stockage-et-transmission-de-linformation-sous-bruit-markovien-satvik-singh-lpt-seminar-28-04-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260505T140000
DTEND;TZID=Europe/Paris:20260505T153000
DTSTAMP:20260427T211548
CREATED:20260417T075434Z
LAST-MODIFIED:20260422T070519Z
UID:12085-1777989600-1777995000@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Christian D Santangelo / LPT / Seminar). -5/05/2026\, 14H
DESCRIPTION:Séminaire LPT \nChristian D Santangelo (Université de Syracuse) \nSeminar LPT\, 5/05/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-christian-d-santangelo-lpt-seminar-5-05-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260507T110000
DTEND;TZID=Europe/Paris:20260507T120000
DTSTAMP:20260427T211548
CREATED:20260415T083622Z
LAST-MODIFIED:20260422T070527Z
UID:12109-1778151600-1778155200@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Saeed Jahromi / LPT / Seminar). -7/05/2026\, 14H
DESCRIPTION:Séminaire LPT \nSaeed Jahromi (IASBS) \nSeminar LPT\, 7/05/2026\, 11H\, 3R4\, salle de conférence
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260507T110000
DTEND;TZID=Europe/Paris:20260507T123000
DTSTAMP:20260427T211548
CREATED:20260415T074751Z
LAST-MODIFIED:20260422T070534Z
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260512T140000
DTEND;TZID=Europe/Paris:20260512T150000
DTSTAMP:20260427T211548
CREATED:20260412T083744Z
LAST-MODIFIED:20260422T070538Z
UID:11992-1778594400-1778598000@fermi.univ-tlse3.fr
SUMMARY:Dynamique quantique de la chiralité d’une paroi de domaine magnétique mésoscopique. - (Oleksiy Kolezhuk / LPT / Seminar). - 12/05/2026\, 14H
DESCRIPTION:Séminaire LPT \nOleksiy Kolezhuk\, (Institut du Magnétisme\, ANS\, Ukraine) \nSeminar LPT\, 12/05/2026\, 14H\, 3R4\, salle de conférence \nSummary\nWe study the quantum dynamics of the internal chirality degree of freedom of a mesoscopic domain wall pinned inside a quasi-one-dimensional fixture. It is shown that weak spin-polarized current excites Bloch oscillations of the domain wall angular rotation velocity\, with the oscillation frequency proportional to the current\, modulated by a much higher magnon-range frequency. In addition to that\, the Wannier-Stark localization effects enable controlled switching between different chiral states\, suppressing inertial effects characteristic for the classical regime. \nThe current density required for the chirality manipulation can be significantly lower compared to the classical regime. We also show that for recently discovered novel class of magnetic materials — altermagnets — chirality switching can be driven by the usual (non-spin-polarized)\ncurrent. \n[1] O. Kolezhuk\, R. Teslia\, I. Buryak\, and O. Gomonay\, Phys. Rev. B 109\, 134418 (2024)
URL:https://fermi.univ-tlse3.fr/event/dynamique-quantique-de-la-chiralite-dune-paroi-de-domaine-magnetique-mesoscopique-oleksiy-kolezhuk-lpt-seminar-12-05-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260526T140000
DTEND;TZID=Europe/Paris:20260526T150000
DTSTAMP:20260427T211548
CREATED:20260410T084321Z
LAST-MODIFIED:20260422T070545Z
UID:12114-1779804000-1779807600@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Loïc Herviou / LPT / Seminar). -26/05/2026\, 14H
DESCRIPTION:Séminaire LPT \nLoïc Herviou (LPMMC) \nSeminar LPT\, 26/05/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-loic-herviou-lpt-seminar-26-05-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260602T110000
DTEND;TZID=Europe/Paris:20260602T120000
DTSTAMP:20260427T211548
CREATED:20260404T085043Z
LAST-MODIFIED:20260414T085234Z
UID:12120-1780398000-1780401600@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Miłosz Panfil / LPT / Seminar). -02/06/2026\, 11H
DESCRIPTION:Séminaire LPT \nMiłosz Panfil (Université de Varsovie) \nSeminar LPT\, 02/06/2026\, 11H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-milosz-panfil-lpt-seminar-02-06-2026-11h/
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260602T140000
DTEND;TZID=Europe/Paris:20260602T150000
DTSTAMP:20260427T211548
CREATED:20260403T084746Z
LAST-MODIFIED:20260414T085322Z
UID:12117-1780408800-1780412400@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Noam Izem / LPT / Seminar). -02/06/2026\, 14H
DESCRIPTION:Séminaire LPT \nNoam Izem (LPT) \nSeminar LPT\, 02/06/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-noam-izem-lpt-seminar-02-06-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260609T140000
DTEND;TZID=Europe/Paris:20260609T153000
DTSTAMP:20260427T211548
CREATED:20260402T083042Z
LAST-MODIFIED:20260414T085248Z
UID:11969-1781013600-1781019000@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Michele Casula / LPT / Seminar). -9/06/2026\, 14H
DESCRIPTION:Séminaire LPT \nMichele Casula (IMPMC) \nSeminar LPT\, 9/06/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-michele-casula-lpt-seminar-9-06-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260616T140000
DTEND;TZID=Europe/Paris:20260616T150000
DTSTAMP:20260427T211548
CREATED:20260401T083952Z
LAST-MODIFIED:20260414T085255Z
UID:12112-1781618400-1781622000@fermi.univ-tlse3.fr
SUMMARY:TBA. - (Jacopo De Nardis / LPT / Seminar). -16/06/2026\, 14H
DESCRIPTION:Séminaire LPT \nJacopo De Nardis (LPTM) \nSeminar LPT\, 16/06/2026\, 14H\, 3R4\, salle de conférence
URL:https://fermi.univ-tlse3.fr/event/tba-jacopo-de-nardis-lpt-seminar-16-06-2026-14h/
LOCATION:Salle de conférence\, Bâtiment 3R4
CATEGORIES:Events,LPT,Seminars
END:VEVENT
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