Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series LPTMS
Subjects physics
Date Tuesday 18 September 2018
Time 11:00
Institute LPTMS
Seminar Room LPTMS, salle 201, 2ème étage, Bât 100, Campus d'Orsay
Speaker's Last Name Roux
Speaker's First Name Guillaume
Speaker's Email Address
Speaker's Institution LPTMS, Université Paris-Sud
Title Quantum purification spectroscopy
Abstract We discuss a protocol based on quenching a purified quantum system that allows to capture bulk spectral features. It uses an infinite temperature initial state and an interferometric strategy to access the Loschmidt amplitude, from which the spectral features are retrieved via Fourier transform, providing coarse-grained approximation at finite times. It involves techniques available in current experimental setups for quantum simulation, at least for small systems. We illustrate possible applications in testing the eigenstate thermalization hypothesis and the physics of many-body localization. Reference: Bradraj Pandey, Kirill Plekhanov and Guillaume Roux, Quantum purification spectroscopy, preprint quant-ph arXiv:1802.04638.
arXiv Preprint Number

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