Density Matrix From Photon Number Tomography

Details Density Matrix From Photon Number Tomography Density Matrix From Photon Number Tomography

1996-11-30

arxiv.org/abs/quant-ph/9612004v1

Europhys.Lett.37:79,1997

Physics

Quantum Physics

LATEX,6 pages,accepted by Europhysics Letters

Scientific paper

10.1209/epl/i1997-00115-8

We provide a simple analytic relation which connects the density operator of the radiation field with the number probabilities. The problem of experimentally "sampling" a general matrix elements is studied, and the deleterious effects of nonunit quantum efficiency in the detection process are analyzed showing how they can be reduced by using the squeezing technique. The obtained result is particulary useful for intracavity field reconstruction states.

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