Increasing future gravitational-wave detectors sensitivity by means of amplitude filter cavities and quantum entanglement

Details Increasing future gravitational-wave detectors sensitivity by means of amplitude filter cavities and quantum entanglement Increasing future gravitational-wave detectors sensitivity by means of amplitude filter cavities and quantum entanglement

2007-07-08

arxiv.org/abs/0707.1132v2

Phys.Rev.D77:062003,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, 7 figures

Scientific paper

10.1103/PhysRevD.77.062003

The future laser interferometric gravitational-wave detectors sensitivity can be improved using squeezed light. In particular, recently a scheme which uses the optical field with frequency dependent squeeze factor, prepared by means of a relatively short (~30 m) amplitude filter cavity, was proposed \cite{Corbitt2004-3}. Here we consider an improved version of this scheme, which allows to further reduce the quantum noise by exploiting the quantum entanglement between the optical fields at the filter cavity two ports.

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