Journal
PHYSICAL REVIEW A
Volume 79, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.063801
Keywords
ground states; laser cooling; photoacoustic effect; quantum entanglement; quantum optics; radiation pressure
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Funding
- Alexander von Humboldt Foundation's Sofja Kovalevskaja Programme
- NSF [PHY-0653653, PHY-0601459]
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We present a quantum analysis of three-mode optoacoustic parametric interactions in an optical cavity, in which two orthogonal transverse optical-cavity modes are coupled to one acoustic mode through radiation pressure. Due to the optimal frequency matching-the frequency separation of two cavity modes is equal to the acoustic-mode frequency-the carrier and sideband fields simultaneously resonate and coherently build up. This mechanism significantly enhances the optoacoustic couplings in the quantum regime. It allows exploration of quantum behavior of optoacoustic interactions in small-scale table-top experiments. We show explicitly that given an experimentally achievable parameter, three-mode scheme can realize quantum ground-state cooling of milligram scale mechanical oscillators and create robust stationary tripartite optoacoustic quantum entanglements.
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