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Preservation Macroscopic Entanglement of Optomechanical Systems in non-Markovian Environment
Jiong Cheng1, Wen-Zhao Zhang1, Ling Zhou1
1School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian, 116024, People's Republic of China.
Abstract:
We investigate dynamics of an optomechanical system under the non-Markovian environment. In the weak optomechanical single-photon coupling regime, we provide an analytical approach fully taking into account the non-Markovian memory effects. When the cavity-bath coupling strength crosses a certain threshold, an oscillating memory state for the classical cavity field is formed. Due to the existence of the non-decay optical bound state, a nonequilibrium optomechanical thermal entanglement is preserved even without external driving laser. Our results provide a potential usage to generate and protect entanglement via non-Markovian environment.
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