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Quantum-state steering in optomechanical devices

Müller-Ebhardt, Helge and Miao, Haixing and Danilishin, Stefan and Chen, Yanbei (2012) Quantum-state steering in optomechanical devices. . (Submitted)

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We show that optomechanical systems in the quantum regime can be used to demonstrate EPR-type quantum entanglement between the optical field and the mechanical oscillator, via quantum-state steering. Namely, the conditional quantum state of the mechanical oscillator can be steered into different quantum states depending the choice made on which quadrature of the out-going field is to be measured via homodyne detection. More specifically, if quantum radiation pressure force dominates over thermal force, the oscillator's quantum state is steerable with a photodetection efficiency as low as 50%, approaching the ideal limit shown by Wiseman and Gambetta [Phys. Rev. Lett. 108, 220402 (2012)]. We also show that requirement for steerability is the same as those for achieving sub-Heisenberg state tomography using the same experimental setup.

Item Type:Report or Paper (Working Paper)
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Chen, Yanbei0000-0002-9730-9463
Additional Information:Imported from arXiv. Acknowledgments. We thank all the members of the AEI Caltech- MIT MQM group for fruitful discussions. This research is supported by the Alexander von Humboldt Foundation’s Sofja Kovalevskaja Programme, NSF grants PHY- 0956189 and PHY-1068881, the David and Barbara Groce startup fund at Caltech, as well as the Institute for Quantum Information and Matter, a Physics Frontier Center with funding from the National Science Foundation and the Gordon and Betty Moore Foundation.
Group:TAPIR, Institute for Quantum Information and Matter
Funding AgencyGrant Number
Alexander von Humboldt Foundation’s Sofja Kovalevskaja ProgrammeUNSPECIFIED
NSFPHY- 0956189
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:20130131-140930189
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36716
Deposited By: JoAnn Boyd
Deposited On:13 Feb 2013 18:48
Last Modified:02 Jun 2023 00:17

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