Dynamical thermalization in isolated quantum dots and black holes
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URI (для ссылок/цитирований):
http://iopscience.iop.org/issue/0295-5075/117/1https://elib.sfu-kras.ru/handle/2311/70241
Автор:
Andrey R. Kolovsky
Dima L. Shepelyansky
Коллективный автор:
Институт инженерной физики и радиоэлектроники
Кафедра теоретической физики и волновых явлений
Дата:
2017-01Журнал:
Europhysics LettersКвартиль журнала в Scopus:
Q2Квартиль журнала в Web of Science:
Q2Библиографическое описание:
Andrey R. Kolovsky. Dynamical thermalization in isolated quantum dots and black holes [Текст] / Andrey R. Kolovsky, Dima L. Shepelyansky // Europhysics Letters. — 2017. — Т. 117 (№ 1). — С. 10003-p1-10003-p7Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.
Аннотация:
We study numerically a model of quantum dot with interacting fermions. At strong interactions with small conductance the model is reduced to the Sachdev-Ye-Kitaev black-hole model while at weak interactions and large conductance it describes a Landau-Fermi liquid in a regime of quantum chaos. We show that above the ̊Aberg threshold for interactions there is an onset of dynamical themalization with the Fermi-Dirac distribution describing the eigenstates of an isolated dot. At strong interactions in the isolated black-hole regime there is also the onset of dynamical thermalization with the entropy described by the quantum Gibbs distribution. This dynamical thermalization takes place in an isolated system without any contact with a thermostat. We discuss the possible realization of these regimes with quantum dots of 2D electrons and cold ions in optical lattices.