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- W1663373235 abstract "Quantum fluctuations in a nondegenerate optical parametric amplifier (NOPA) are investigated experimentally with a squeezed state coupled into the internal idler mode of the NOPA. Reductions of the inherent quantum noise of the amplifier are observed with a minimum noise level 0.7 dB below the usual noise level of the amplifier with its idler mode in a vacuum state. With two correlated quantum fields as the amplifier's inputs and proper adjustment of the gain of the amplifier, it is shown that the amplifier's intrinsic quantum noise can be completely suppressed so that noise-free amplification is achieved. It is also shown that the NOPA, when coupled to either a squeezed state or a nonclassically correlated state, can realize quantum tapping of optical information." @default.
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- W1663373235 date "1994-05-01" @default.
- W1663373235 modified "2023-09-26" @default.
- W1663373235 title "Quantum amplification and quantum optical tapping with squeezed states and correlated quantum states" @default.
- W1663373235 hasPublicationYear "1994" @default.
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