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Quantum Bayes estimation of the amplitude of a coherent signal (Corresp.)

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1 Author(s)

The complex amplitude of a coherent quantum signal in the presence of thermal noise is to be estimated when its real and imaginary parts have a Gaussian prior distribution. Cost functions of Gaussian, power-law, and delta-function forms are shown all to lead to the same optimum estimator.

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Information Theory, IEEE Transactions on  (Volume:20 ,  Issue: 3 )