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  Quantum noise in laser-interferometer gravitational-wave detectors with a heterodyne readout scheme

Buonanno, A., Chen, Y., & Mavalvala, N. (2003). Quantum noise in laser-interferometer gravitational-wave detectors with a heterodyne readout scheme. Physical Review D, 67: 122005. doi:10.1103/PhysRevD.67.122005.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-DA9D-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-DAA0-D
Genre: Journal Article

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 Creators:
Buonanno, Alessandra1, 2, Author              
Chen, Yanbei, Author
Mavalvala, Nergis, Author
Affiliations:
1Gravitation et Cosmologie (GReCO), Institut d’Astrophysique de Paris (CNRS), escidoc:persistent22              
2Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:1933290              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: We analyze and discuss the quantum noise in signal-recycled laser interferometer gravitational-wave detectors, such as Advanced LIGO, using a heterodyne readout scheme and taking into account the optomechanical dynamics. Contrary to homodyne detection, a heterodyne readout scheme can simultaneously measure more than one quadrature of the output field, providing an additional way of optimizing the interferometer sensitivity, but at the price of additional noise. Our analysis provides the framework needed to evaluate whether a homodyne or heterodyne readout scheme is more optimal for second generation interferometers from an astrophysical point of view. As a more theoretical outcome of our analysis, we show that as a consequence of the Heisenberg uncertainty principle the heterodyne scheme cannot convert conventional interferometers into (broadband) quantum non-demolition interferometers.

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 Dates: 2003-02-112003
 Publication Status: Published in print
 Pages: 16 pages, 8 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: gr-qc/0302041
DOI: 10.1103/PhysRevD.67.122005
URI: http://arxiv.org/abs/gr-qc/0302041
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 67 Sequence Number: 122005 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258