Microscopic–macroscopic entanglement transfer in optomechanical system: Non-Markovian effects

2018 ◽  
Vol 426 ◽  
pp. 70-76 ◽  
Author(s):  
Qingxia Mu ◽  
Hao Li ◽  
Xia Huang ◽  
Xinyu Zhao
Keyword(s):  
Optomechanical System ◽  
Macroscopic Entanglement ◽  
Entanglement Transfer

scholarly journals Robust entanglement between a movable mirror and atomic ensemble and entanglement transfer in coupled optomechanical system

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Cheng-Hua Bai ◽  
Dong-Yang Wang ◽  
Hong-Fu Wang ◽  
Ai-Dong Zhu ◽  
Shou Zhang
Keyword(s):  
Atomic Ensemble ◽  
Optomechanical System ◽  
Entanglement Transfer

Optomechanical entanglement of a macroscopic oscillator by quantum feedback

2016 ◽  
Vol 14 (05) ◽  
pp. 1650022 ◽  
Author(s):  
E Wu ◽  
FengZhi Li ◽  
XueFeng Zhang ◽  
YongHong Ma
Keyword(s):  
Coherent State ◽  
Cavity Mode ◽  
Mechanical Oscillator ◽  
Optomechanical System ◽  
Quantum Feedback ◽  
Fabry Perot ◽  
Macroscopic Entanglement

We propose a scheme to generate the case of macroscopic entanglement in the optomechanical system, which consist of Fabry–Perot cavity and a mechanical oscillator by applying a homodyne-mediated quantum feedback. We explore the effect of feedback on the entanglement in vacuum and coherent state, respectively. The results show that the introduction of quantum feedback can increase the entanglement effectively between the cavity mode and the oscillator mode.

scholarly journals A Nanoscale Photonic Crystal Cavity Optomechanical System for Ultrasensitive Motion Sensing

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 462
Author(s):  
Ji Xia ◽  
Fuyin Wang ◽  
Chunyan Cao ◽  
Zhengliang Hu ◽  
Heng Yang ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Cavity ◽  
Optical Quality ◽  
Optical Force ◽  
Mechanical Oscillator ◽  
Maximum Displacement ◽  
Optomechanical System ◽  
High Optical Quality ◽  
Hybrid Platform ◽  
Optomechanical Coupling

Optomechanical nanocavities open a new hybrid platform such that the interaction between an optical cavity and mechanical oscillator can be achieved on a nanophotonic scale. Owing to attractive advantages such as ultrasmall mass, high optical quality, small mode volume and flexible mechanics, a pair of coupled photonic crystal nanobeam (PCN) cavities are utilized in this paper to establish an optomechanical nanosystem, thus enabling strong optomechanical coupling effects. In coupled PCN cavities, one nanobeam with a mass meff~3 pg works as an in-plane movable mechanical oscillator at a fundamental frequency of . The other nanobeam couples light to excite optical fundamental supermodes at and 1554.464 nm with a larger than 4 × 104. Because of the optomechanical backaction arising from an optical force, abundant optomechanical phenomena in the unresolved sideband are observed in the movable nanobeam. Moreover, benefiting from the in-plane movement of the flexible nanobeam, we achieved a maximum displacement of the movable nanobeam as 1468 . These characteristics indicate that this optomechanical nanocavity is capable of ultrasensitive motion measurements.

Optical response based on Stokes and anti-Stokes scattering processes in cavity optomechanical system

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
Tie Wang ◽  
Cheng-Hua Bai ◽  
Dong-Yang Wang ◽  
Shutian Liu ◽  
Shou Zhang ◽  
...  
Keyword(s):  
Optical Response ◽  
Optomechanical System ◽  
Anti Stokes ◽  
Cavity Optomechanical System

scholarly journals Rare-Earth-Mediated Optomechanical System in the Reversed Dissipation Regime

2021 ◽  
Vol 126 (4) ◽  
Author(s):  
Ryuichi Ohta ◽  
Loïc Herpin ◽  
Victor M. Bastidas ◽  
Takehiko Tawara ◽  
Hiroshi Yamaguchi ◽  
...  
Keyword(s):  
Rare Earth ◽  
Optomechanical System
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