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          Institute: MPI für Gravitationsphysik     Collection: Theoretical Gravitational Wave Physics     Display Documents



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ID: 320000.0, MPI für Gravitationsphysik / Theoretical Gravitational Wave Physics
Interferometers for Displacement-Noise-Free Gravitational-Wave Detection
Authors:Chen, Yanbei; Pai, Archana; Somiya, Kentaro; Kawamura, Seiji; Sato, Shuichi; Kokeyama, Keiko; Ward, Robert L.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Physical Review Letters
Volume:97
Sequence Number of Article:151103
Review Status:not specified
Audience:Not Specified
Abstract / Description:We propose a class of displacement- and laser-noise free gravitational-wave-interferometer configurations, which does not sense non-geodesic mirror motions and laser noises, but provides non-vanishing gravitational-wave signal. Our interferometer consists of 4 mirrors and 2 beamsplitters, which form 4 Mach-Zehnder interferometers. By contrast to previous works, no composite mirrors are required. Each mirror in our configuration is sensed redundantly, by at least two pairs of incident and reflected beams. Displacement- and laser-noise free detection is achieved when output signals from these 4 interferometers are combined appropriately. Our 3-dimensional interferometer configuration has a low-frequency response proportional to f^2, which is better than the f^3 achievable by previous 2-dimensional configurations.
External Publication Status:published
Document Type:Article
Communicated by:Yanbei Chen
Affiliations:MPI für Gravitationsphysik/Theoretical Gravitational Wave Physics
Identifiers:LOCALID:arXiv:gr-qc/0603054v2
URL:http://link.aps.org/abstract/PRL/v97/e151103
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