Optomechanical entanglement manipulation and switching in a squeezed-cavity-assisted optomechanical system

被引：2

作者：

Sun, Lei ^{[1
]}

Qian, Yi-Bing ^{[1
]}

Lai, Deng-Gao ^{[2
]}

Huang, Shi-Tong ^{[1
]}

Zhang, Zhen-Yu ^{[1
]}

Hou, Bang-Pin ^{[1
]}

Tang, Lei ^{[1
]}

机构：

[1] Sichuan Normal Univ, Inst Solid State Phys, Coll Phys & Elect Engn, Chengdu 610101, Peoples R China

[2] RIKEN Cluster Pioneering Res, Theoret Quantum Phys Lab, Wako, Saitama 3510198, Japan

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 20期

基金：

中国国家自然科学基金;

关键词：

QUANTUM ENTANGLEMENT; PHOTONS; MOTION; STATE; ATOM;

D O I：

10.1364/OE.534446

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum entanglement is pivotal in modern quantum technologies, spanning applications from quantum networks to quantum metrology. Controllable quantum entanglement in cavity optomechanical systems has been an enduring pursuit. We propose a unique method for flexible manipulation and switching of optomechanical entanglement in a squeezed-cavity-assisted optomechanical system consisting of a chi(2)-nonlinear optical cavity and an optomechanical cavity. Squeezing the nonlinear optical cavity through parametric pumping allows effective control of light-light and light-vibration interactions within the system. This capability of the squeezed system plays a key role in manipulating quantum entanglement. We find that quantum entanglement between the unsqueezed cavity mode and the mechanical mode can be effectively regulated by adjusting the pump laser parameters. Furthermore, by turning the phase of the pump, we can achieve highly flexible quantum switching between entanglement and separability. Additionally, we demonstrate increased entanglement between the squeezed cavity mode and the mechanical mode when completely suppressing the pump-induced optical input noise. Our findings pave the way not only towards the manipulation and protection of fragile quantum entanglement but also to achieve photon-phonon quantum control by exploiting quantum squeezing. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：35806 / 35821

页数：16

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