Some considerations about future interferometric GW detectors

Details Some considerations about future interferometric GW detectors Some considerations about future interferometric GW detectors

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cqgra..21s1183g&link_type=abstract

Classical and Quantum Gravity, Volume 21, Issue 5, pp. S1183-S1190 (2004).

Physics

10

Scientific paper

The two most important issues in designing future gravitational wave interferometric detectors are, in our opinion, thermal and optical noise. In this paper we discuss some approaches for reducing these noises. About thermal noise we show a possible cryogenic solution. About optical noise (namely, the combined effect of shot noise and radiation pressure noise) we show that it is possible to apply a recently proposed reduction strategy based on a 'quantum feedback' (Courty et al 2003 Phys. Rev. Lett. 90 083601; Courty et al 2003 Preprint gr-qc/0301068) to a full Fabry Perot cavity. This can be seen as a further step towards the practical realization of a detector which is able to evade the standard quantum limit.

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