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Title:
Quantum entropy thermalization

Speaker:
Yichen Huang

Abstract:
In an isolated quantum many-body system undergoing unitary evolution, the entropy of a subsystem (smaller than half the system size) thermalizes if at long times, it is to leading order equal to the thermodynamic entropy of the subsystem at the same energy. We prove entropy thermalization for a nearly integrable Sachdev-Ye-Kitaev model initialized in a pure product state. The model is obtained by adding random all-to-all $4$-body interactions as a perturbation to a random free-fermion model. Joint work with Aram W. Harrow

Link:
http://scgp.stonybrook.edu/video_portal/video.php?id=5693

Workshop:
Simons- Physics Seminar