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  Entanglement-enhanced time-continuous quantum control in optomechanics

Hofer, S. G., & Hammerer, K. (2015). Entanglement-enhanced time-continuous quantum control in optomechanics. Physical Review A, 91(3): 033822. doi:10.1103/PhysRevA.91.033822.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-BA3D-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-BA3E-2
Genre: Journal Article

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 Creators:
Hofer, Sebastian G., Author
Hammerer, Klemens1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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Free keywords: Quantum Physics, quant-ph
 Abstract: The cavity-optomechanical radiation pressure interaction provides the means to create entanglement between a mechanical oscillator and an electromagnetic field interacting with it. Here we show how we can utilize this entanglement within the framework of time-continuous quantum control, in order to engineer the quantum state of the mechanical system. Specifically, we analyze how to prepare a low-entropy mechanical state by (measurement-based) feedback cooling operated in the blue detuned regime, the creation of bipartite mechanical entanglement via time-continuous entanglement swapping, and preparation of a squeezed mechanical state by time-continuous teleportation. The protocols presented here are feasible in optomechanical systems exhibiting a cooperativity larger than 1.

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 Dates: 2014-11-052015-03-182015
 Publication Status: Published in print
 Pages: 18 pages, 12 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1411.1337
DOI: 10.1103/PhysRevA.91.033822
URI: http://arxiv.org/abs/1411.1337
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Title: Physical Review A
  Other : Phys. Rev. A
  Other : Physical Review A: Atomic, Molecular, and Optical Physics
Source Genre: Journal
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Publ. Info: New York, NY : American Physical Society
Pages: - Volume / Issue: 91 (3) Sequence Number: 033822 Start / End Page: - Identifier: ISSN: 1050-2947
CoNE: /journals/resource/954925225012_2