Thermalization of locally perturbed many-body quantum systems
Dabelow L, Vorndamme P, Reimann P (2022)
Physical Review B 105(2): 024310.
Zeitschriftenaufsatz
| Veröffentlicht | Englisch
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Autor*in
Dabelow, Lennart;
Vorndamme, PatrickUniBi;
Reimann, PeterUniBi
Abstract / Bemerkung
Deriving conditions under which a macroscopic system thermalizes directly from the underlying quantum many-body dynamics of its microscopic constituents is a long-standing challenge in theoretical physics. The well-known eigenstate thermalization hypothesis (ETH) is presumed to be a key mechanism, but has defied rigorous verification for generic systems thus far. A weaker variant (weak ETH), by contrast, is provably true for a large variety of systems, including even many integrable models, but its implications with respect to the problem of thermalization are still largely unexplored. Here we analytically demonstrate that systems satisfying the weak ETH exhibit thermalization for two very natural classes of far-from-equilibrium initial conditions: the overwhelming majority of all pure states with a preset nonequilibrium expectation value of some given local observable, and the Gibbs states of a Hamiltonian which subsequently is subject to a quantum quench in the form of a sudden change of some local system properties.
Erscheinungsjahr
2022
Zeitschriftentitel
Physical Review B
Band
105
Ausgabe
2
Art.-Nr.
024310
ISSN
2469-9950
eISSN
2469-9969
Page URI
https://pub.uni-bielefeld.de/record/2961321
Zitieren
Dabelow L, Vorndamme P, Reimann P. Thermalization of locally perturbed many-body quantum systems. Physical Review B . 2022;105(2): 024310.
Dabelow, L., Vorndamme, P., & Reimann, P. (2022). Thermalization of locally perturbed many-body quantum systems. Physical Review B , 105(2), 024310. https://doi.org/10.1103/PhysRevB.105.024310
Dabelow, Lennart, Vorndamme, Patrick, and Reimann, Peter. 2022. “Thermalization of locally perturbed many-body quantum systems”. Physical Review B 105 (2): 024310.
Dabelow, L., Vorndamme, P., and Reimann, P. (2022). Thermalization of locally perturbed many-body quantum systems. Physical Review B 105:024310.
Dabelow, L., Vorndamme, P., & Reimann, P., 2022. Thermalization of locally perturbed many-body quantum systems. Physical Review B , 105(2): 024310.
L. Dabelow, P. Vorndamme, and P. Reimann, “Thermalization of locally perturbed many-body quantum systems”, Physical Review B , vol. 105, 2022, : 024310.
Dabelow, L., Vorndamme, P., Reimann, P.: Thermalization of locally perturbed many-body quantum systems. Physical Review B . 105, : 024310 (2022).
Dabelow, Lennart, Vorndamme, Patrick, and Reimann, Peter. “Thermalization of locally perturbed many-body quantum systems”. Physical Review B 105.2 (2022): 024310.
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