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arXiv · 1205.6585

Flexible generation of correlated photon pairs in different frequency ranges

Fernando Oster·Christoph H Keitel·Mihai Macovei
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Abstract

The feasibility to generate correlated photon pairs at variable frequencies is investigated. For this purpose, we consider the interaction of an off-resonant laser field with a two-level system possessing broken inversion symmetry. We show that the system generates non-classical photon pairs exhibiting strong intensity-intensity correlations. The intensity of the applied laser tunes the degree of correlation while the detuning controls the frequency of one of the photons which can be in the THz-domain. Furthermore, we observe the violation of a Cauchy-Schwarz inequality characterizing these photons.

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Fernando Oster, Christoph H Keitel, Mihai Macovei. 2012-05-30. Flexible generation of correlated photon pairs in different frequency ranges. https://doi.org/10.1103/physreva.85.063814

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