Detecting Free-Mass Common-Mode Motion Induced by Incident Gravitational Waves: Testing General Relativity and Source Direction via Fox-Smith and Michelson Interferometers

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Bibliographische Detailangaben
Hauptverfasser:	Tobar, Michael Edmund, Suzuki, Toshikazu, Kuroda, Kazuaki
Format:	Preprint
Veröffentlicht:	2009
Schlagworte:	General Relativity and Quantum Cosmology
Online-Zugang:	Acceder al recurso
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author	Tobar, Michael Edmund Suzuki, Toshikazu Kuroda, Kazuaki
author_facet	Tobar, Michael Edmund Suzuki, Toshikazu Kuroda, Kazuaki
contents	In this paper we show that information on both the differential and common mode free-mass response to a gravitational wave can provide important information on discriminating the direction of the gravitational wave source and between different theories of gravitation. The conventional Michelson interferometer scheme only measures the differential free-mass response. By changing the orientation of the beam splitter, it is possible to configure the detector so it is sensitive to the common-mode of the free-mass motion. The proposed interferometer is an adaptation of the Fox-Smith interferometer. A major limitation to the new scheme is its enhanced sensitivity to laser frequency fluctuations over the conventional, and we propose a method of canceling these fluctuations. The configuration could be used in parallel to the conventional differential detection scheme with a significant sensitivity and bandwidth.
format	Preprint
id	arxiv_https___arxiv_org_abs_0903_5046
institution	arXiv
publishDate	2009
record_format	arxiv
spellingShingle	Detecting Free-Mass Common-Mode Motion Induced by Incident Gravitational Waves: Testing General Relativity and Source Direction via Fox-Smith and Michelson Interferometers Tobar, Michael Edmund Suzuki, Toshikazu Kuroda, Kazuaki General Relativity and Quantum Cosmology In this paper we show that information on both the differential and common mode free-mass response to a gravitational wave can provide important information on discriminating the direction of the gravitational wave source and between different theories of gravitation. The conventional Michelson interferometer scheme only measures the differential free-mass response. By changing the orientation of the beam splitter, it is possible to configure the detector so it is sensitive to the common-mode of the free-mass motion. The proposed interferometer is an adaptation of the Fox-Smith interferometer. A major limitation to the new scheme is its enhanced sensitivity to laser frequency fluctuations over the conventional, and we propose a method of canceling these fluctuations. The configuration could be used in parallel to the conventional differential detection scheme with a significant sensitivity and bandwidth.
title	Detecting Free-Mass Common-Mode Motion Induced by Incident Gravitational Waves: Testing General Relativity and Source Direction via Fox-Smith and Michelson Interferometers
topic	General Relativity and Quantum Cosmology
url	https://arxiv.org/abs/0903.5046

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