СЕМИНАР: Александар Буква

У оквиру семинара Центра за изучавање комплексних система Института за физику у Београду, у четвртак, 11. марта 2021. године у 14 часова путем  Zoom платформе, Александар Буква (Лоренц институт, Универзитет у Лајдену, Холандија), одржаће предавање:

Operator thermalization hypothesis vs. eigenstate thermalization hypothesis


Quantum systems with strong entanglement can thermalize differently from our classical understanding, through a phenomenon known as eigenstate thermalization. It was recently found that even non-interacting and by extension integrable quantum systems will display thermal relaxation when probed with a generic operator. This operator thermalization is related to, but distinct from eigenstate thermalization. In this talk we will present a numerical study of this difference on the example of a transverse-field Ising model at integrable and non-integrable (strong entanglement) regime where it is the most apparent. This is done by computing two-point correlation functions and by directly comparing the matrix elements in the both regimes.

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Meeting ID: 860 7711 8105
Passcode: 611179