Single-photon frequency conversion in nonlinear crystals
arXiv:1309.2532 · doi:10.1103/PhysRevA.88.053807
Abstract
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.
7 pages, 4 figures