A two-step MaxLik-MaxEnt strategy to infer photon distribution from on/off measurement at low quantum efficiency

Details A two-step MaxLik-MaxEnt strategy to infer photon distribution from on/off measurement at low quantum efficiency A two-step MaxLik-MaxEnt strategy to infer photon distribution from on/off measurement at low quantum efficiency

2005-01-18

arxiv.org/abs/quant-ph/0501100v1

Eur. Phys. J. D vol 32, p. 223 (2005)

Physics

Quantum Physics

4 figures, to appear in EPJD

Scientific paper

10.1140/epjd/e2004-00133-0

A method based on Maximum-Entropy (ME) principle to infer photon distribution from on/off measurements performed with few and low values of quantum efficiency is addressed. The method consists of two steps: at first some moments of the photon distribution are retrieved from on/off statistics using Maximum-Likelihood estimation, then ME principle is applied to infer the quantum state and, in turn, the photon distribution. Results from simulated experiments on coherent and number states are presented.

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