Quantum parameter estimation using general single-mode Gaussian states
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Pinel, Olivier
Jian, Pu
Treps, Nicolas
Fabre, Claude
Braun, D
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American Physical Society
Abstract
We calculate the quantum Cramér-Rao bound for the sensitivity with which one or several parameters, encoded in a general single-mode Gaussian state, can be estimated. This includes in particular the interesting case of mixed Gaussian states. We apply the
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Physical Review A: Atomic, Molecular and Optical Physics