Optimum detection of quantum entangled fiber solitons

Abstract

Two-partie and multi-partie time-multiplexed fiber solitons after nonlinear interaction are rigorously proved to be quantum entangled in the sense that their quadrature components of internal modes satisfy the EPR non-local criterion. The optimum homedyne local oscillator pulse-shape for entanglement detection is determined. (C) 2007 Optical Society of America