November 08 2013

New article: Phys. Rev. A 88, 053807 (2013)

Single-photon frequency conversion in nonlinear crystals

Susanne Blum, G. A. Olivares-RenterĂ­a, Carlo Ottaviani, Christoph Becher, and Giovanna Morigi
Phys. Rev. A 88, 053807 (2013)

Frequency conversion of single photons in a nonlinear crystal is theoretically discussed. Losses and noise are included within a Heisenberg-Langevin formalism for the propagating photon field. We calculate the first- and second-order correlation functions of the frequency-converted light when the input is a train of single-photon pulses. This model allows one to identify the requirements on the nonlinear device so that it can be integrated in a quantum network.

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