Gravitational Wave Detection by Laser Interferometry on Earth

Details Gravitational Wave Detection by Laser Interferometry on Earth Gravitational Wave Detection by Laser Interferometry on Earth

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....5.3097r&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The existence of gravitational waves is the most prominent of Einstein's predictions that has not yet been directly verified. Worldwide, ground-based gravitational wave detectors using laser interferometry are being commissioned for science runs. The largest are the two US detectors of the LIGO project: facilities at widely separated sites in the states of Washington and Louisiana, each with 4 km armlength. LIGO data runs have shown the excellent reliability. Similarly encouraging results are reported from the British-German project GEO 600 with 600 m arms. The Japanese project TAMA 300 (with 300 m arms) was the earliest to exhibit good and reliable continuous runs. In all of these projects, the final level of sensitivity has yet to be attained. The French-Italian VIRGO project is to start using its 3 km interferometer by the end of this year. Future enhanced versions are being planned, with scientific data not expected until 2008. The sensitivities to be obtained will allow cosmic events of great scientific interest to be monitored. Detection of the events, and the quantitative analysis together with the location in the sky will provide vital information not obtainable via the window of electromagnetic radiation.

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