Work

Quantum Dynamics of Bosonic Squeezing Under Multi-Tone Driving in an Optomechanical System

Year: 2025

Type: article

Abstract: The squeezing of a mechanical mode can break through the “standard quantum limit”, which has significant applications in high-precision measurement. In this paper, we employ a full quantum stochastic method to investigate the dynamics of an optomechanical system under multi-tone driving. Previous method usually sets the classical mean value as a constant. For the dynamic process, this mean value should be time dependent, especially under the multi-tone driving. Here, we use the full quantum stochastic method, and we find that the mechanical squeezing exhibits nonmonotonic behavior with the enhancement of blue-sideband driving, which declines after reaching its maximum value; meanwhile, this system requires a longer time to evolve into a steady state. Moreover, the nonmonotonic trend of squeezing can also be observed by enhancing the strengths of both red- and blue-sideband driving simultaneously, and a shorter time is required to reach the steady state. This work provides valuable insights into the dynamics of an optomechanical system under multi-tone driving for the first time, which is of significant importance for improving the sensitivity of quantum precision measurement.

Source: IEEE photonics journal

DOI: 10.1109/jphot.2025.3632666

Authors: Xiao-Fei Liu, Tie-Jun Wang, Chuan Wang

Institutions: Beijing Academy of Quantum Information Sciences, Beijing University of Posts and Telecommunications, Beijing Normal University

Language: English

Topic: Mechanical and Optical Resonators

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,075

Funder: National Natural Science Foundation of China