Dependence of quantum correlations of twin beams on pump finesse of optical parametric oscillator
arXiv:0709.4520 · doi:10.1088/0953-4075/41/3/035502
Abstract
The dependence of quantum correlation of twin beams on the pump finesse of an optical parametric oscillator is studied with a semi-classical analysis. It is found that the phase-sum correlation of the output signal and idler beams from an optical parametric oscillator operating above threshold depends on the finesse of the pump field when the spurious pump phase noise generated inside the optical cavity and the excess noise of the input pump field are involved in the Langevin equations. The theoretical calculations can explain the previously experimental results, quantitatively.
arXiv comment27 pages, 8 figures
References in corpus (15)
- Quantum information with continuous variables
- Tripartite Quantum State Sharing
- Quantum Dense Coding Exploiting Bright EPR Beam
- Experimental demonstration of tripartite entanglement and controlled dense coding for continuous variables
- Generation of Bright Two-Color Continuous Variable Entanglement
- Experimental Demonstration of Unconditional Entanglement Swapping for Continuous Variables
- Quantum key distribution with bright entangled beams
- Conditional preparation of a quantum state in the continuous variable regime: generation of a sub-Poissonian state from twin beams
- Experimental continuous-variable entanglement from a phase-difference-locked optical parametric oscillator
- Experimental Demonstration of Quantum Entanglement Between Frequency-Nondegenerate Optical Twin Beams
- Experimental investigation of amplitude and phase quantum correlations in a type II OPO above threshold: from the non-degenerate to the degenerate operation
- Critical fluctuations and entanglement in the nondegenerate parametric oscillator
- Entanglement in the above-threshold optical parametric oscillator
- Dense-coding quantum key distribution based on continuous-variable entanglement
- Disagreement between correlations of quantum mechanics and stochastic electrodynamics in the damped parametric oscillator