Measuring a Parity Violation Signature in the Early Universe via Ground-based Laser Interferometers

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dc.creatorSeto, Naoki
dc.creatorTaruya, Atsushi
dc.date2007-07-04
dc.date.accessioned2026-07-07T11:17:30Z
dc.date.available2026-07-07T11:17:30Z
dc.descriptionWe show that pairs of widely separated interferometers are advantageous for measuring the Stokes parameter V of a stochastic background of gravitational waves. This parameter characterizes asymmetry of amplitudes of right- and left-handed waves and generation of the asymmetry is closely related to parity violation in the early universe. The advantageous pairs include LIGO(Livingston)-LCGT and AIGO-Virgo that are relatively insensitive to Omega_GW (the simple intensity of the background). Using at least three detectors, information of the intensity Omega_GW and the degree of asymmetry V can be separately measured.
dc.description6 pages, 3 figures, accepted for publication in PRL
dc.identifierhttps://arxiv.org/abs/0707.0535
dc.identifierhttp://arxiv.org/abs/0707.0535
dc.identifierPhys.Rev.Lett.99:121101,2007
dc.identifierdoi:10.1103/PhysRevLett.99.121101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193026
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleMeasuring a Parity Violation Signature in the Early Universe via Ground-based Laser Interferometers
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