Switchable bipartite and genuine tripartite entanglement via an optoelectromechanical interface
Switchable bipartite and genuine tripartite entanglement via an optoelectromechanical interface
复制标题
通过光电机械接口可切换二分纠缠和真正的三分纠缠
DOI:
10.1103/physreva.101.042320
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发表时间:
2019-10
影响因子:
2.9
通讯作者:
Tian Lin
中科院分区:
文献类型:
--
作者:
Jiang Cheng;Tserkis Spyros;Collins Kevin;Onoe Sho;Li Yong;Tian Lin
Controllable multipartite entanglement is a crucial element in quantum information processing. Here we present a scheme that generates switchable bipartite and genuine tripartite entanglement between microwave and optical photons via an optoelectromechanical interface, where microwave and optical cavities are coupled to a mechanical mode with controllable coupling constants. We show that by tuning an effective gauge phase between the coupling constants to the "sweet spots", bipartite entanglement can be generated and switched between designated output photons. The bipartite entanglement is robust against the mechanical noise and the signal loss to the mechanical mode when the couplings are chosen to satisfy the impedance matching condition. When the gauge phase is tuned away from the "sweet spots", genuine tripartite entanglement can be generated and verified with homodyne measurement on the quadratures of the output fields. Our result can lead to the implementation of controllable and robust multipartite entanglement in hybrid quantum systems operated in distinctively different frequencies.
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