Time-resolved entanglement and photon number correlation of twin beams: Application to quantum key distribution scheme
Gagik Yu. Kryuchkyan · Optics and Spectroscopy · 2007
Quantum entanglement and intensity correlations in continuous variable (CV) regimes have investigated in the time domain in addition to many analogous investigations performed in the frequency domain. The specific signatures of time-resolved CV quadrature entanglement and intensity difference squeezing have been analyzed for periodically-pulsed optical parametric oscillator (OPO). An application to quantum key distribution scheme based on intensity correlation of twin beams has also been considered.