The Simultaneous Ground‐State Cooling and Synchronization of Two Mechanical Oscillators by Driving Nonlinear Medium

Abstract

The simultaneous ground‐state cooling (SGC) and quantum synchronization of multi‐mode mechanical resonators in the cavity optomechanical system are both attractive research domains and have been developed separately. In this paper, the influence of optical parametric amplifier on improving SGC and quantum synchronization is investigated. It is found that the nonlinear medium can suppress the Stokes heating term because of the destructive interference between the counter‐rotating term and the optical parametric amplification term, thereby improving cooling rate. More importantly, the relation between SGC and quantum synchronization is analyzed, and it is shown that SGC must be accompanied by quantum synchronization, but quantum synchronization does not require SGC. The conclusion connects the two fields and provides a well understanding of the two phenomena.

Multiphonon Bundle Emission in a Strong‐Coupling Cavity Optomechanical System

“…Thus, seminal progress has been made both in theoretics and experiment research with the progress of technology. [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] Recently, strong lightmatter coupling becomes a main ingredient based on cavity optomechanical systems. Within the strong-coupling regime, especially in single-photon strong-coupling regime, a strong photon nonlinearity such as photon blockade effect occur, which leads to the high level state of the cavity filed is suppressed.…”

Quantum squeezing induced nonreciprocal enhancement of optomechanical cooling

“…Up to now, COM-based ground-state cooling of mechanical resonators has been proposed in theory [10][11][12] and demonstrated in experiments [13][14][15] by exploiting different cooling mechanisms such as feedback cooling and sideband cooling. Recently, to overcome the resolved sideband limit in the sideband cooling scheme or to realize the synchronous cooling of multiple mechanical modes, several proposals have been made by introducing auxiliary optical or magnon modes [16][17][18], nonreciprocal coupling [19][20][21], nonlinearity effect [22,23], as well as hybrid approaches [24][25][26][27][28].…”