Search for a stochastic background of 100-MHz gravitational waves with laser interferometers

Tomotada Akutsu, Seiji Kawamura, Atsushi Nishizawa, Koji Arai, Kazuhiro Yamamoto, Daisuke Tatsumi, Shigeo Nagano, Erina Nishida, Takeshi Chiba, Ryuichi Takahashi, Naoshi Sugiyama, Mitsuhiro Fukushima, Toshitaka Yamazaki, Masa Katsu Fujimoto

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49 Citations (Scopus)

Abstract

This Letter reports the results of a search for a stochastic background of gravitational waves (GW) at 100 MHz by laser interferometry. We have developed a GW detector, which is a pair of 75-cm baseline synchronous recycling (resonant recycling) interferometers. Each interferometer has a strain sensitivity of ∼10-16Hz-1/2 at 100 MHz. By cross-correlating the outputs of the two interferometers within 1000 seconds, we found h1002Ωgw<6×1025 to be an upper limit on the energy density spectrum of the GW background in a 2-kHz bandwidth around 100 MHz, where a flat spectrum is assumed.

Original languageEnglish
Article number101101
JournalPhysical Review Letters
Volume101
Issue number10
DOIs
Publication statusPublished - 2008 Sep 5
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Cite this

    Akutsu, T., Kawamura, S., Nishizawa, A., Arai, K., Yamamoto, K., Tatsumi, D., Nagano, S., Nishida, E., Chiba, T., Takahashi, R., Sugiyama, N., Fukushima, M., Yamazaki, T., & Fujimoto, M. K. (2008). Search for a stochastic background of 100-MHz gravitational waves with laser interferometers. Physical Review Letters, 101(10), [101101]. https://doi.org/10.1103/PhysRevLett.101.101101