Physics – Quantum Physics
Scientific paper
2005-09-28
Physics
Quantum Physics
Scientific paper
10.1088/1464-4266/7/12/007
In this paper we describe theoretically quantum control of temporal correlations of entangled photons produced by collinear type II spontaneous parametric down-conversion. We examine the effect of spectral phase modulation of the signal or idler photons arriving at a 50/50 beam splitter on the temporal shape of the entangled-photon wave packet . The coincidence count rate is calculated analytically for photon pairs in terms of the modulation depth applied to either the signal or idler beam with a spectral phase filter. It is found that the two-photon coincidence rate can be controlled by varying the modulation depth of the spectral filter.
Andrews Robert
Joseph Andrea T.
Pike Rosemary E.
Sarkar Sarben
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