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Witnessing Nonequilibrium Entanglement Dynamics in a Strongly Correlated Fermionic Chain

MPG-Autoren
/persons/resource/persons241276

Kalthoff,  M.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

/persons/resource/persons241274

Hofmann,  D.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;

Kennes,  D. M.
Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);
Institut für Theorie der Statistischen Physik, RWTH Aachen University, 52056 Aachen, Germany and JARA-Fundamentals of Future Information Technology;

Sentef,  M. A.
Theoretical Description of Pump-Probe Spectroscopies in Solids, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science (CFEL);

Externe Ressourcen

https://arxiv.org/abs/2209.02081
(Preprint)

https://doi.org/10.1103/PhysRevLett.130.106902
(Verlagsversion)

Volltexte (beschränkter Zugriff)
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Volltexte (frei zugänglich)

PhysRevLett.130.106902.pdf
(Verlagsversion), 973KB

Ergänzendes Material (frei zugänglich)

supplement.pdf
(Ergänzendes Material), 8MB

Zitation

Baykusheva, D. R., Kalthoff, M., Hofmann, D., Claassen, M., Kennes, D. M., Sentef, M. A., et al. (2023). Witnessing Nonequilibrium Entanglement Dynamics in a Strongly Correlated Fermionic Chain. Physical Review Letters, 130(10): 106902. doi:10.1103/PhysRevLett.130.106902.


Zitierlink: https://hdl.handle.net/21.11116/0000-000C-B99A-6
Zusammenfassung
Many-body entanglement in condensed matter systems can be diagnosed from equilibrium response functions through the use of entanglement witnesses and operator-specific quantum bounds. Here, we investigate the applicability of this approach for detecting entangled states in quantum systems driven out of equilibrium. We use a multipartite entanglement witness, the quantum Fisher information, to study the dynamics of a paradigmatic fermion chain undergoing a time-dependent change of the Coulomb interaction. Our results show that the quantum Fisher information is able to witness distinct signatures of multipartite entanglement both near and far from equilibrium that are robust against decoherence. We discuss implications of these findings for probing entanglement in light-driven quantum materials with time-resolved optical and x-ray scattering methods.