3 papers
physics.optics2020
Breaking Anti- Symmetry by Spinning a Resonator
Huilai Zhang, Ran Huang, Sheng-Dian Zhang +4
Non-Hermitian systems, with symmetric or antisymmetric Hamiltonians under the parity-time () operations, can have entirely real eigenvalues. This fact has led to surp…
quant-ph2020
Nonreciprocal Optomechanical Entanglement against Backscattering Losses
Ya-Feng Jiao, Sheng-Dian Zhang, Yan-Lei Zhang +3
We propose how to achieve nonreciprocal quantum entanglement of light and motion and reveal its counterintuitive robustness against random losses. We find that by splitting the cou…
quant-ph2019
Weak-force sensing with squeezed optomechanics
Wen Zhao, Sheng-Dian Zhang, Adam Miranowicz +1
We investigate quantum-squeezing-enhanced weak-force sensing via a nonlinear optomechanical resonator containing a movable mechanical mirror and an optical parametric amplifier (OP…