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- W4367000404 abstract "We theoretically predict the squeezing-induced point-gap topology together with a {it symmetry-protected $mathbb{Z}_2$ skin effect} in a one-dimensional (1D) quadratic-bosonic system (QBS). Protected by a time-reversal symmetry, such a topology is associated with a novel $mathbb{Z}_2$ invariant (similar to quantum spin-Hall insulators), which is fully capable of characterizing the occurrence of $mathbb{Z}_2$ skin effect. Focusing on zero energy, the parameter regime of this skin effect in the phase diagram just corresponds to a {it real-gap and point-gap coexisted topological phase}. Moreover, this phase associated with the {it symmetry-protected $mathbb{Z}_2$ skin effect} is experimentally observable by detecting the steady-state power spectral density. Our work is of fundamental interest in enriching non-Bloch topological physics by introducing quantum squeezing, and has potential applications for the engineering of symmetry-protected sensors based on the $mathbb{Z}_2$ skin effect." @default.
- W4367000404 created "2023-04-27" @default.
- W4367000404 creator A5024541463 @default.
- W4367000404 creator A5091112729 @default.
- W4367000404 date "2023-04-21" @default.
- W4367000404 modified "2023-10-18" @default.
- W4367000404 title "Quantum-Squeezing-Induced Point-Gap Topology and Skin Effect" @default.
- W4367000404 doi "https://doi.org/10.48550/arxiv.2304.12201" @default.
- W4367000404 hasPublicationYear "2023" @default.
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