Bulletin of the American Physical Society
2023 APS March Meeting
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session G66: Open Quantum Systems I
11:30 AM–2:42 PM,
Tuesday, March 7, 2023
Room: Room 413
Sponsoring
Unit:
DAMOP
Chair: Federico Roccati, University of Luxembourg
Abstract: G66.00014 : Entanglement dynamics in a non-Hermitian quantum system
2:30 PM–2:42 PM
Presenter:
Ken-Ichiro Imura
(University of Tokyo)
Authors:
Ken-Ichiro Imura
(University of Tokyo)
Takahiro Orito
(Hiroshima University)
As a concrete model, we consider a 1D tight-binding model with non-reciprocal (or asymmetric) hopping and on-site disorder (the so-called Hatano-Nelson model). We will particularly focus on the regime of weak disorder and on the case of periodic boundary condition, in which the eigenenergies exhibit a finite imaginary part. We clarify how the complex nature of the spectrum leads to unusual behaviors of the entanglement dynamics (non-monotonic temporal evolution and W-dependence, etc.).
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