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Title: Thermal and back-action noises in dual-sphere gravitational-wave detectors
Author: Briant, T.
Cerdonio, M. (Massimo)
Conti, L.
Heidemann, A.
Lobo Gutiérrez, José Alberto, 1953-
Pinard, M.
Keywords: Teoria quàntica
Ones gravitacionals
Quantum theory
Gravitational waves
Issue Date: 2003
Publisher: The American Physical Society
Abstract: We study the sensitivity limits of a broadband gravitational-wave detector based on dual resonators such as nested spheres. We determine both the thermal and back-action noises when the resonators displacements are read out with an optomechanical sensor. We analyze the contributions of all mechanical modes, using a new method to deal with the force-displacement transfer functions in the intermediate frequency domain between the two gravitational-wave sensitive modes associated with each resonator. This method gives an accurate estimate of the mechanical response, together with an evaluation of the estimate error. We show that very high sensitivities can be reached on a wide frequency band for realistic parameters in the case of a dual-sphere detector.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 2003, vol. 67, núm. 10, p. 102005-1-102005-8
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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