Quantum Squeezing and Sensing with Pseudo-Anti-Parity-Time Symmetry
Abstract
The emergence of parity-time (PT) symmetry has greatly enriched our study of symmetry-enabled non-Hermitian physics, but the realization of quantum PT symmetry faces an intrinsic issue of unavoidable symmetry-breaking Langevin noises. Here we construct a quantum pseudo-anti-PT (pseudo-APT) symmetry in a two-mode bosonic system without involving Langevin noises. We show that the spontaneous pseudo-APT symmetry breaking leads to an exceptional...
Paper Details
Title
Quantum Squeezing and Sensing with Pseudo-Anti-Parity-Time Symmetry
Published Date
Apr 29, 2022
Journal
Volume
128
Issue
17
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