Published March 7, 2004
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Journal Article
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Advanced LIGO: non-Gaussian beams
Abstract
By using non-Gaussian, flat-topped beams in the advanced gravitational wave interferometers currently being designed, one can reduce the impact on the interferometer sensitivity of a variety of fundamental disturbances (thermoelastic noise, noise in mirror coatings, thermal lensing, etc). This may make beating the standard quantum limit an achievable goal.
Additional Information
© Institute of Physics and IOP Publishing Limited 2004. Received 21 August 2003. Published 11 February 2004. Print publication: Issue 5 (7 March 2004). For helpful discussion and advice we especially thank Stan Whitcomb. We have also benefitted from discussions with colleagues in the LIGO Scientific Collaboration and elsewhere, among them: Raymond Beausoleil, Alessandra Buonarmo, Vladimir Braginsky, Yanbei Chen, Peter Fritschel, Gregg Harry, Bill Kells, David Shoemaker, Robert Spero, Ken Strain, Rai Weiss, Farid Khalili and Mike Zucker. We are particularly grateful to Garilynn Billingsley. This work was supported by the National Science Foundation under the grants PHY-0098751, PHY-0099568 and PHY-9210038 and by the Russian Foundation under #96-02-16319a and #97-02-0421g. We also acknowledge the Center for Advanced Computing Research of Caltech for providing the supercomputer facilities. We are grateful to Larry Wallace and the system administration group he leads.Files
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