Generation of non-classical correlated photon pairs via a ladder-type atomic configuration: theory and experiment
Abstract
We experimentally generate a non-classical correlated two-color photon pair at 780 and 1529.4 nm in a ladder-type configuration using a hot 85Rb atomic vapor with the production rate of ~10(7)/s. The non-classical correlation between these two photons is demonstrated by strong violation of Cauchy-Schwarz inequality by the factor R = 48 ± 12. Besides, we experimentally investigate the relations between the correlation and some important experimental parameters such as the single-photon detuning, the powers of pumps. We also make a theoretical analysis in detail and the theoretical predictions are in reasonable agreement with our experimental results.
References
Citations
Generation and characterization of position-momentum entangled photon pairs in a hot atomic gas cell
High-visibility Franson interference of time-energy entangled photon pairs from warm atomic ensemble
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