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Open Quantum Systems Decoherence

Enhancing nanomechanical squeezing by atomic interactions in a hybrid atom-optomechanical system

arXiv
Authors: Niklas Mann, Michael Thorwart

Year

2018

Paper ID

23398

Status

Preprint

Abstract Read

~2 min

Abstract Words

109

Citations

N/A

Abstract

In a hybrid atom-optomechanical system, the optical coupling of a mechanical mode of a nanomembrane in an optical cavity with a distant interacting atom gas permits highly non-classical quantum many-body states. We show that the mechanical mode can be squeezed by the back-action of internal excitations of the atoms in the gas. A Bogoliubov approach reveals that these internal excitations form a fluctuating environment of quasi-particle excitations for the mechanical mode with a gaped spectral density. Nanomechanical squeezing arises due to quasi-particle excitations in the interacting atom gas when the mechanical frequency is close to resonance with the internal atomic transitions. Interestingly, nanomechanical squeezing is enhanced by atom-atom interactions.

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  • In a hybrid atom-optomechanical system, the optical coupling of a mechanical mode of a nanomembrane in an optical cavity with a distant interacting atom gas permits highly...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1811.05158 [2] arXiv https://arxiv.org/abs/1811.05158 [3] Publisher https://arxiv.org/abs/1811.05158

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