Parameters estimation in quantum optics

Details Parameters estimation in quantum optics Parameters estimation in quantum optics

2000-04-17

arxiv.org/abs/quant-ph/0004066v1

Phys. Rev. A 62, 23815 (2000)

Physics

Quantum Physics

11 pages. 6 figures. Accepted on Phys. Rev. A

Scientific paper

10.1103/PhysRevA.62.023815

We address several estimation problems in quantum optics by means of the maximum-likelihood principle. We consider Gaussian state estimation and the determination of the coupling parameters of quadratic Hamiltonians. Moreover, we analyze different schemes of phase-shift estimation. Finally, the absolute estimation of the quantum efficiency of both linear and avalanche photodetectors is studied. In all the considered applications, the Gaussian bound on statistical errors is attained with a few thousand data.

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