Physics – Nuclear Physics
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992nuphs..28...48p&link_type=abstract
Nuclear Physics B Proceedings Supplements, Volume 28, Issue 1, p. 48-53.
Physics
Nuclear Physics
1
Scientific paper
The basic features of resonant antennas for the search for gravitational waves are reviewed. These antennas detect the Fourier component of the metric tensor perturbation h(t) at the antenna resonance. By means of optimum filters it is possible to reach a sensitivity which, for short burst of gravitational radiation, is basically limited by the noise of the electronic amplifier. One cryogenic antenna with mass M = 2300 kg and temperature T = 20 mK should have a sensitivity, for short bursts, of the order of hmin ⋍ 3 × 10-21. A brief review of the activity going on all over the world by the experimental groups working with resonant antennas is given. At present three cryogenic resonant antennas are in operation: the Louisiana State University antenna and Explorer and Altair of the Rome group.
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