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Quantum Noise Reduction in the LIGO Gravitational Wave Interferometer with Squeezed States of Light

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The quantum nature of light imposes a fundamental limit on the sensitivity of ground based gravitational wave detectors. Squeezed states of light, produced via parametric downconversion in a non linear medium, have recently been employed to beat the quantum limit and extend the astrophysical reach of the most sensitive gravitational wave detector ever built.

© 2014 Optical Society of America

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