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  Signal recycled laser-interferometer gravitational-wave detectors as optical springs

Buonanno, A., & Chen, Y. (2002). Signal recycled laser-interferometer gravitational-wave detectors as optical springs. Physical Review D, 65: 042001. doi:10.1103/PhysRevD.65.042001.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-FEF2-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-FEF6-9
Genre: Journal Article

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 Creators:
Buonanno, Alessandra1, 2, Author              
Chen, Yanbei, Author
Affiliations:
1Theoretical Astrophysics and Relativity Group, California Institute of Technology, Pasadena, 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: Using the force-susceptibility formalism of linear quantum measurements, we study the dynamics of signal recycled interferometers, such as LIGO-II. We show that, although the antisymmetric mode of motion of the four arm-cavity mirrors is originally described by a free mass, when the signal-recycling mirror is added to the interferometer, the radiation-pressure force not only disturbs the motion of that ``free mass'' randomly due to quantum fluctuations, but also and more fundamentally, makes it respond to forces as though it were connected to a spring with a specific optical-mechanical rigidity. This oscillatory response gives rise to a much richer dynamics than previously known for SR interferometers, which enhances the possibilities for reshaping the noise curves and, if thermal noise can be pushed low enough, enables the standard quantum limit to be beaten. We also show the possibility of using servo systems to suppress the instability associated with the optical-mechanical interaction without compromising the sensitivity of the interferometer.

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 Dates: 2001-07-052002
 Publication Status: Published in print
 Pages: 42 pages, 13 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: gr-qc/0107021
DOI: 10.1103/PhysRevD.65.042001
URI: http://arxiv.org/abs/gr-qc/0107021
 Degree: -

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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: 65 Sequence Number: 042001 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258