Mechanical PT symmetry in coupled optomechanical systems

By Xun-Wei Xu, Yu-xi Liu, Chang-pu Sun, Yong Li. 2014

136 citations recorded by the source corpus.

Synergetic Innovation Center of Quantum Information and Quantum Physics,University of Science and Technology of China, Hefei, Anhui 230026, China(Dated: June 6, 2014)We propose to realize mechanical parity-time (PT) symmetry in two coupled optomechanical systems. Toprovide gain to one mechanical resonator and the same amount of damping to the other, the two optical cavitiesshould be driven by a blue- and a red-detuned laser ﬁelds, respectively. After adiabatically eliminating the de-grees of freedom of the cavity modes, we derive a formula to describe PT symmetry of two coupled mechanicalresonators. We further study the experimental feasibility of our proposal and show that the observation of thePT symmetry of the mechanical resonators via two coupled optomechanical systems is within the reach ofcurrent experiments.

Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/fbb5c51e3972af989b2e6bd04b7c801030650790

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In Atomic and Molecular Physics, and Optics

In Statistical and Nonlinear Physics

Citations in the corpus

Generalized parity–time symmetry condition for enhanced sensor telemetry (2018, methodology): “Inspired by optical schemes, other PT -symmetric systems in electronics (sub-radiofrequency, 30 KHz and below [25]-[27] ) , acoustics [28] and optomechanics [29],[30] have also been recently reported.”