2007年9月
Measuring a parity-violation signature in the early universe via ground-based laser interferometers
PHYSICAL REVIEW LETTERS
- ,
- 巻
- 99
- 号
- 12
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevLett.99.121101
- 出版者・発行元
- AMER PHYSICAL SOC
We 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 the kilometer-size interferometers LIGO (Livingston)-LCGT and AIGO-Virgo, which 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.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevLett.99.121101
- ISSN : 0031-9007
- Web of Science ID : WOS:000249668000015