Room-Temperature Steady-State Entanglement in a Four-Mode Optomechanical System |
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Authors: | Tao Wang Rui Zhang Xue-Mei Su |
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Institution: | 1. College of Physics, Jilin University, Changchun 130012, China;
2. College of Physics, Tonghua Normal University, Tonghua 134000, China |
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Abstract: | Stationary entanglement in a four-mode optomechanical system,especially under room-temperature,is discussed.In this scheme,when the coupling strengths between the two target modes and the mechanical resonator are equal,the results cannot be explained by the Bogoliubov-mode-based scheme.This is related to the idea of quantummechanics-free subspace,which plays an important role when the thermal noise of the mechanical modes is considered.Significantly prominent steady-state entanglement can be available under room-temperature. |
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Keywords: | four-mode optomechanics steady-state entanglement quantum-mechanics-free subspace |
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