Quantum amplication and the detection of empty de Broglie waves

  • Yuen H
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A simple formula relating the input and output quantum states of a beamsplitter is derived and applied to the analysis of an interferometer with a photon duplicator along one arm. The result is in direct contrast with the case in which a linear amplifier is employed in place of the photon duplicator. © 1986.

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  • Horace P. Yuen

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