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Open Quantum Systems Decoherence
Non-Hermitian Edge Burst
arXiv
Authors: Wen-Tan Xue, Yu-Min Hu, Fei Song, Zhong Wang
Year
2021
Paper ID
61126
Status
Preprint
Abstract Read
~2 min
Abstract Words
91
Citations
N/A
Abstract
We unveil an unexpected non-Hermitian phenomenon, dubbed edge burst, in non-Hermitian quantum dynamics. Specifically, in a class of non-Hermitian quantum walk in periodic lattices with open boundary condition, an exceptionally large portion of loss occurs at the system boundary. The physical origin of this edge burst is found to be an interplay between two unique non-Hermitian phenomena: non-Hermitian skin effect and imaginary gap closing. Furthermore, we establish a universal bulk-edge scaling relation underlying the non-Hermitian edge burst. Our predictions are experimentally accessible in various non-Hermitian systems including quantum-optical and cold-atom platforms.
Why This Paper Matters
- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
- It adds a 2021 reference point for readers tracking recent quantum research.
- We unveil an unexpected non-Hermitian phenomenon, dubbed edge burst, in non-Hermitian quantum dynamics.
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