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 discrimi- nation power. It represents an alternative to quantum homodyne tomography of simpler implementation.
State reconstruction by on/off measurements / A. Allevi, A. Andreoni, M. Bondani, G. Brida, M. Genovese, M. Gramegna, S. Olivares, M. G. A. Paris, P. Traina, G. Zambra. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 80:2(2009), pp. 022114.022114.1-022114.022114.5.
State reconstruction by on/off measurements
S. Olivares;M. G. A. Paris;
2009
Abstract
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 discrimi- nation power. It represents an alternative to quantum homodyne tomography of simpler implementation.
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