Quantum estimation of a damping constant

Details Quantum estimation of a damping constant Quantum estimation of a damping constant

2007-03-12

arxiv.org/abs/quant-ph/0703091v2

Phys. Rev. A 75, 042322 (2007)

Physics

Quantum Physics

7 pages, 5 figures

Scientific paper

10.1103/PhysRevA.75.042322

We discuss an interferometric approach to the estimation of quantum
mechanical damping. We study specific classes of entangled and separable probe
states consisting of superpositions of coherent states. Based on the assumption
of limited quantum resources we show that entanglement improves the estimation
of an unknown damping constant.

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