Coherent control and feedback cooling in a remotely coupled hybrid atom-optomechanical system
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...
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| Veröffentlicht in: | New journal of physics 2014-08, Vol.16 (8), p.83036-26 |
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| creator | Bennett, James S Madsen, Lars S Baker, Mark Rubinsztein-Dunlop, Halina Bowen, Warwick P |
| description | 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. |
| doi_str_mv | 10.1088/1367-2630/16/8/083036 |
| format | Article |
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| subjects | Control systems Control theory Cooling Feedback Feedback control feedback cooling Ground state Hybrid systems Joining Mechanical oscillators Motional Optical measurement optomechanics Oscillators Physics sympathetic cooling |
| title | Coherent control and feedback cooling in a remotely coupled hybrid atom-optomechanical system |
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