State reconstruction by on/off measurements

Details State reconstruction by on/off measurements State reconstruction by on/off measurements

2009-02-28

arxiv.org/abs/0903.0104v3

Phys. Rev. A 80, 022114 (2009)

Physics

Quantum Physics

6 pages, 4 figures, revised and enlarged version

Scientific paper

We demonstrate a state reconstruction technique which provides either the
Wigner function or the density matrix of a field mode and requires only
avalanche photodetectors, without any phase or amplitude discrimination power.
It represents an alternative, of simpler implementation, to quantum homodyne
tomography.

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