Synchronizing Photons with a Binary Division Strategy

MIGUEL A. LAROTONDA; CHRISTIAN T. SCHMIEGELOW

Mar del Plata, Buenos Aires

Conferencia; Quantum Optics VII; 2014

Latin Amerian Comitee for Quantum Optics

We present a scheme to produce clock synchronized photons from a single parametric downconversion source with a binary division strategy. The time dierence between a clock and detections of the herald photons determine the amount of delay that must be imposed to a photon by actively switching dierent temporal segments, so that all photons emerge from the output with their wavepackets temporally synchronized with the temporal reference. We extend this scheme to the production of many synchronized photons and nd expressions for the optimal amount of correction stages as a function of the pair generation rate and the target coherence time. For multiple photon generation at an optimized input photon rate, the output rate of our scheme scales essentially with the reciprocal of the number of photons produced, which is an improvement on the inherent exponential scaling of multi-photon parametric downconversion.