Journal
REPORTS ON PROGRESS IN PHYSICS
Volume 82, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6633/aab906
Keywords
gravitational waves; squeezed light; quantum optics
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Funding
- National Science Foundation
- Deutsche Forschungsgemeinschaft [SCHN757/6]
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A century after Einstein's formulation of general relativity, the detectors of the Laser Interferometer Gravitational-wave Observatory (LIGO) made the first direct detection of gravitational waves. This historic achievement was the culmination of a world-wide effort and decades of instrument research. While sufficient for this monumental discovery, the current generation of gravitational-wave detectors represent the least sensitive devices necessary for the task; improved detectors will be required to fully exploit this new window on the Universe. In this paper, we review the application of squeezed vacuum states of light to gravitational-wave detectors as a way to reduce quantum noise, which currently limits their performance in much of the detection band.
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