Quest for circular polarization of a gravitational wave background and orbits of laser interferometers in space | Zendy

Naoki Seto | Zendy

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Quest for circular polarization of a gravitational wave background and orbits of laser interferometers in space

Author(s) -

Naoki Seto

Publication year - 2007

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Language(s) - English

Resource type - Journals

eISSN - 1550-7998

pISSN - 1550-2368

DOI - 10.1103/physrevd.75.061302

Subject(s) - physics , gravitational wave , astronomical interferometer , omega , gravitational wave background , polarization (electrochemistry) , circular polarization , interferometry , isotropy , astrophysics , optics , quantum mechanics , chemistry , microstrip

We show that isotropic component of circular polarization of stochasticgravitational wave background can be explored by breaking two dimensionalconfiguration of multiple laser interferometers for correlation analysis. Byappropriately selecting orbital parameters for the proposed BBO mission, thecircular polarization degree Pi can be measured down to Pi ~ 0.08(10^{-15}/Omega_{GW})(SNR/5) with slightly (~10%) sacrificing the detectionlimit for the total intensity Omega_{GW} compared to the standard planesymmetric configuration. This might allow us to detect signature of parityviolation in the very early universe.Comment: 6 pages, 4 figure

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