Cavity-free quantum optomechanical cooling by atom-modulated radiation

Abstract

We theoretically study the radiation-induced interaction between the mechanical motion of an oscillating mirror and a remotely trapped atomic cloud. When illuminated by continuous-wave radiation, the mirror motion will induce red and blue sideband radiation, which respectively increases and reduces motional excitation. We find that by suitably driving $\Lambda$-level atoms, the mirror correlation with a specific radiation sideband could be converted from the outgoing to the incoming radiation. Such process allows us to manipulate the heating and cooling effects. Particularly, we develop an optomechanical cooling strategy that can mutually cancel the heating effect of the outgoing and incoming radiations, thus the motional ground state is attainable by net cooling. Without the necessity of cavity installation or perfect alignment, our proposal complements other efforts in quantum cooling of macroscopic objects.

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Cited by in corpus (6)

• Ground state cooling and high-fidelity quantum transduction via parametrically-driven bad-cavity optomechanics
• Enhancing nanomechanical squeezing by atomic interactions in a hybrid atom-optomechanical system
• Coherent feedback in optomechanical systems in the sideband-unresolved regime
• Tuning the Order of the Nonequilibrium Quantum Phase Transition in a Hybrid Atom-Optomechanical System
• Dynamical tunnelling of a Nano-mechanical Oscillator
• Nanomechanically-induced nonequilibrium quantum phase transition to a self-organized density wave of a Bose-Einstein condensate