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Paper detail

Experimental limit on Spontaneous Parametric Up Conversion

We present a first experimental test of the existence of Spontaneus Parametric Up Conversion, predicted by a specific local realistic model based on Wigner function formalism. The measurement has been made using a ccd camera on the emission of a LiIO3 crystal pumped by a 351 nm and/or a 789 (1064) nm lasers. We obtain an upper limit of 160 times on the ratio between intensity of Spontaneus Parametric Up Conversion and Spontaneous Parametric Down conversion.

preprint2003arXivOpen access
G. BridaM. GenoveseM. GramegnaC. Novero
quant-ph
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G. BridaM. GenoveseM. GramegnaC. Novero

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