Reservoir-engineered entanglement in a hybrid modulated three-mode optomechanical system

Reservoir-engineered entanglement in a hybrid modulated three-mode optomechanical system
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混合调制三模光机械系统中储层工程纠缠

DOI:
10.1103/physreva.97.042314
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发表时间:
2018-03
期刊:
影响因子:
2.9
通讯作者:
Lin Xiu Min
Lin Xiu Min
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Liao Chang Geng;Chen Rong Xin;Xie Hong;Lin Xiu Min

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我们提出了一种在混合调制三模光机械系统中产生高纯度和强腔-机械纠缠(或光-微波纠缠)的有效方法。通过对腔体施加双音驱动并调节两个机械振子之间(或机械振子与传输线谐振器之间)之间的耦合强度,我们得到了一个有效的哈密顿量,其中一个中间机械模充当工程库,通过分束器样的相互作用冷却两个目标系统模的Bogoliubov模。通过这种方式,两个靶模被驱动到静止极限下的双模压缩态。特别地,我们讨论了腔驱动失谐对纠缠和纯度的影响。研究发现,腔驱动失谐量在获得高纯度强纠缠稳态的过程中起着至关重要的作用。
We propose an effective approach for generating highly pure and strong cavity-mechanical entanglement (or optical-microwave entanglement) in a hybrid modulated three-mode optomechanical system. By applying a two-tone driving to the cavity and modulating coupling strength between two mechanical oscillators (or between a mechanical oscillator and a transmission line resonator), we obtain an effective Hamiltonian where an intermediate mechanical mode acting as an engineered reservoir cools the Bogoliubov modes of two target system modes via beam-splitter-like interactions. In this way, the two target modes are driven to two-mode squeezed states in the stationary limit. In particular, we discuss the effects of cavity-driving detuning on the entanglement and the purity. It is found that the cavity-driving detuning plays an critical role in the goal of acquiring highly pure and strongly entangled steady states.
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