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Strong Squeezing of Duffing Oscillator in a Highly Dissipative Optomechanical Cavity System
Author(s) -
Xiong Biao,
Li Xun,
Chao ShiLei,
Yang Zhen,
Peng Rui,
Zhou Ling
Publication year - 2020
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201900596
Subject(s) - sideband , physics , dissipative system , quantum , quantum mechanics , quantum electrodynamics , dissipation , classical mechanics , microwave
In the conventional scheme of generating strong mechanical squeezing by the joint effect between mechanical parametric amplification and sideband cooling, the resolved sideband condition is required so as to overcome the quantum backaction heating. In the unresolved sideband regime, to suppress the quantum backaction, a χ (2) nonlinear medium is introduced to the cavity. The result shows that the quantum backaction heating effect caused by unwanted counter‐rotating term can be completely removed. Hence, the strong mechanical squeezing can be obtained even for the system far from the resolved‐sideband regime.