Tripartite Quantum Entanglement with Squeezed Optomechanics

• Published in: Laser & photonics reviews Vol. 18; no. 12
• Main Authors: Jiao, Ya‐Feng, Zuo, Yun‐Lan, Wang, Yan, Lu, Wangjun, Liao, Jie‐Qiao, Kuang, Le‐Man, Jing, Hui
• Format: Journal Article
• Language: English
• Published: Weinheim Wiley Subscription Services, Inc 01.12.2024
• Subjects: cavity optomechanics; Compressing; Controllability; Data processing; Entangled states; Fabry-Perot interferometers; Opto-mechanics; optomechanical entanglement; Parameters; Parametric amplifiers; quantum engineering; Quantum entanglement; Quantum phenomena; quantum squeezing; Reservoirs
• ISSN: 1863-8880; 1863-8899
• DOI: 10.1002/lpor.202301154

The ability to engineer entangled states that involve macroscopic objects is of particular importance for a wide variety of quantum‐enabled technologies, ranging from quantum information processing to quantum sensing. Here how to achieve coherent manipulation and enhancement of quantum entanglement in a hybrid optomechanical system, which consists of a Fabry–Pérot cavity with two movable mirrors, an optical parametric amplifier (OPA), and an injected squeezed vacuum reservoir is proposed. It is shown that the advantages of this system are twofold: 1) one can effectively regulate the light‐mirror interactions by introducing a squeezed intracavity mode via the OPA; 2) when properly matching the squeezing parameters between the squeezed cavity mode and the injected squeezed vacuum reservoir, the optical input noises can be suppressed completely. These peculiar features of this system allow the generation and manipulation of quantum entanglement in a coherent and controllable way. More importantly, it is also found that such controllable entanglement, under some specific squeezing parameters, can be considerably enhanced in comparison with those of the conventional optomechanical system. The work, providing a promising method to regulate and tailor the light‐mirror interaction, is poised to serve as a useful tool for engineering various quantum effects which are based on cavity optomechanics. Quantum entanglement, providing an appealing resource for a variety of nascent quantum technologies, is fragile to thermal noises induced by system‐bath interaction. Here, the study presents that a squeezed optomechanical system, which can enhance the light‐motion interaction while suppressing the system‐bath interaction simultaneously, provides a promising platform to achieve highly entangled states in a coherent and tunable way, as well as protect the states from thermal noises.