Communications in Theoretical Physics ›› 2022, Vol. 74 ›› Issue (11): 115103. doi: 10.1088/1572-9494/ac6746

• Quantum Physics and Quantum Information • Previous Articles    

Quantum statistics of phonon radiations in optomechanical systems

Menghan Chen1,2,(), Yue Chang3, Tao Shi1,4   

  1. 1CAS Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
    2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
    3Beijing Automation Control Equipment Institute, Beijing 100074, China
    4CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received: 2022-03-04 Revised: 2022-04-13 Accepted: 2022-04-14 Published: 2022-10-28
  • Contact: Menghan Chen E-mail:505878197@qq.com

Abstract:

We study the correlation statistics of phonon radiations in a weakly driven optomechanical system. Three dominated scattering processes are identified by the scattering theory analytically and the master equation numerically, whose interplay determines the phonon statistical properties. Our results show that for the large detuning, the driving field off-resonant with the system induces a small emission rate of two anti-bunched phonons. For the resonant driving field, there is a relatively large emission rate of two bunched phonons.

Key words: quantum optics, optomechanics, quantum information