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most citedCharacterization of the LIGO detectors during their sixth science run

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quant-ph2017★ 175 cited

Detection loss tolerant supersensitive phase measurement with an SU(1,1) interferometer

Mathieu Manceau, Gerd Leuchs, Farid Khalili +1

In an unseeded SU(1,1) interferometer composed of two cascaded degenerate parametric amplifiers, with direct detection at the output, we demonstrate a phase sensitivity overcoming…