The tripartite entanglement in a phase-mismatched frequency non-degenerated optical parametric amplifier

Abstract

We present an analytical solution for Fokker–Planck equation of phase-mismatched frequency non-degenerated optical parametric amplifier (FNOPA). We investigate the continuous-variable (CV) tripartite entanglement characteristic of FNOPA working at phase-matched and phase-mismatched condition. From below threshold to above threshold, we numerically calculate the dependence of CV tripartite entanglement on relative loss parameter η and phase-mismatched factor Δω. The larger η and the smaller Δω can bring a good entanglement.

Keywords:

• Analytical solution
• phase-mismatched
• continuous-variable entanglement
• non-degenerated optical parametric amplifier