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- W4377100552 abstract "We theoretically predict the squeezing-induced point-gap topology together with a symmetry-protected ${mathbb{Z}}_{2}$ ``skin effect'' in a one-dimensional (1D) quadratic-bosonic system. 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 the ${mathbb{Z}}_{2}$ skin effect. Focusing on zero energy, the parameter regime of this skin effect in the phase diagram just corresponds to a ``real- and point-gap coexisting topological phase.'' Moreover, this phase associated with the symmetry-protected ${mathbb{Z}}_{2}$ skin effect is experimentally observable by detecting the steady-state power spectral density. Our Letter 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.
- W4377100552 created "2023-05-20" @default.
- W4377100552 creator A5024541463 @default.
- W4377100552 creator A5065874668 @default.
- W4377100552 date "2023-05-19" @default.
- W4377100552 modified "2023-10-14" @default.
- W4377100552 title "Quantum-Squeezing-Induced Point-Gap Topology and Skin Effect" @default.
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