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  Entanglement of macroscopic test masses and the Standard Quantum Limit in laser interferometry

Müller-Ebhardt, H., Rehbein, H., Schnabel, R., Danzmann, K., & Chen, Y. (2008). Entanglement of macroscopic test masses and the Standard Quantum Limit in laser interferometry. Physical Review Letters, 100(1): 013601. doi:10.1103/PhysRevLett.100.013601.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6233-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-6235-9
Genre: Journal Article

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PRL100_013601.pdf (Publisher version), 258KB
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 Creators:
Müller-Ebhardt, Helge1, Author              
Rehbein, Henning1, Author              
Schnabel, Roman1, Author              
Danzmann, Karsten1, Author              
Chen, Yanbei2, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24010              
2Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24013              

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 Abstract: We show that the generation of entanglement of two heavily macroscopic mirrors with masses of up to several kilograms are feasible with state of the art techniques of high-precision laser interferometry. The basis of such a demonstration would be a Michelson interferometer with suspended mirrors and simultaneous homodyne detections at both interferometer output ports. We present the connection between the generation of entanglement and the Standard Quantum Limit (SQL) for a free mass. The SQL is a well-known reference limit in operating interferometers for gravitational-wave detection and provides a measure of when macroscopic entanglement can be observed in the presence of realistic decoherence processes.

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Language(s): eng - English
 Dates: 2008-01
 Publication Status: Published in print
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 Identifiers: DOI: 10.1103/PhysRevLett.100.013601
eDoc: 318022
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 100 (1) Sequence Number: 013601 Start / End Page: - Identifier: ISSN: 1079-7114