Conditional measurements on multimode pairwise entangled states from spontaneous parametric downconversion
Articolo
Data di Pubblicazione:
2010
Citazione:
Conditional measurements on multimode pairwise entangled states from spontaneous parametric downconversion / A. Allevi, A. Andreoni, M. Bondani, F. A. Beduini, M. G. Genoni, S. Olivares, M. G. A. Paris. - In: EUROPHYSICS LETTERS. - ISSN 0295-5075. - 92:2(2010), pp. 20007.20007.1-20007.20007.6. [10.1209/0295-5075/92/20007]
Abstract:
We address the intrinsic multimode nature of the quantum state of light obtained
by pulsed spontaneous parametric downconversion and develop a theoretical model based only
on experimentally accessible quantities. We exploit the pairwise entanglement as a resource for
conditional multimode measurements and derive closed formulas for the detection probability and
the density matrix of the conditional states. We present a set of experiments performed to validate
our model in different conditions that are in excellent agreement with experimental data. Finally, we evaluate the non-Gaussianity of the conditional states obtained from our source with the aim of discussing the effects of the different experimental parameters on the effectiveness of this type of conditional state preparation.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
A. Allevi, A. Andreoni, M. Bondani, F.A. Beduini, M.G. Genoni, S. Olivares, M.G.A. Paris
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