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View Full Version : Quantum Noise in Optical Interferometers



trinitree88
2010-Jun-26, 04:13 PM
If a massive object accelerates, it should create a gravitational wave. Propagation of that wave should travel at c according to General Relativity, and detection is possible using a very long baseline optical interferometer with vacuum pipes, lasers, partially silvered mirrors as beam splitters, and surfaces to display the resulting interferograms.....LIGO. Surprisingly, the crossing angle of the beams has a subtle effect that results in a better signal to noise ratio, but without amplifying the gravitational signal as previously thought. SEE:http://arxiv.org/PS_cache/arxiv/pdf/1006/1006.4772v1.pdf

and LIGO, SEE:http://www.ligo.caltech.edu/LIGO_web/about/