Coherent control and feedback cooling in a remotely-coupled hybrid atom-optomechanical system

Abstract

Cooling to the motional ground state is an important first step in the preparation of nonclassical states of mesoscopic mechanical oscillators. Light-mediated coupling to a remote atomic ensemble has been proposed as a method to reach the ground state for low frequency oscillators. The ground state can also be reached using optical measurement followed by feedback control. Here we investigate the possibility of enhanced cooling by combining these two approaches. The combination, in general, outperforms either individual technique, though atomic ensemble-based cooling and feedback cooling each individually dominate over large regions of parameter space.

28 pages, 5 figures, 2 tables. Updated to include exemplary experimental parameters and expanded discussion of noise sources

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Cited by in corpus (24)

• Sympathetic cooling of a membrane oscillator in a hybrid mechanical-atomic system
• Atom-based coherent quantum-noise cancellation in optomechanics
• Hybrid optomechanical cooling by atomic $\Lambda$ systems
• Energy localization enhanced ground-state cooling of mechanical resonator from room temperature in optomechanics using a gain cavity
• Remote Hamiltonian Interactions Mediated by Light
• A Quantum Optomechanical Interface Beyond the Resolved Sideband Limit
• Ground state cooling of micromechanical oscillators in the unresolved sideband regime induced by a quantum well
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• Cavity optomechanics assisted by optical coherent feedback
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• Ground state cooling in a hybrid optomechanical system with a three-level atomic ensemble
• Bose-Einstein condensates in an atom-optomechanical system with effective global non-uniform interaction
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• Unified Collision Model of Coherent and Measurement-based Quantum Feedback