Photon-number entangled states generation model with stimulated parametric down conversion

TL;DR

This paper presents a new model for generating photon-number entangled states via stimulated parametric down conversion, avoiding traditional approximations and analyzing the evolution of entangled states.

Contribution

It introduces a simplified model that describes photon-number entangled state generation without using the parametric approximation, providing insights into state evolution.

Findings

Derived equations for the system's dynamics

Analyzed evolution of photon-number entangled states

Provided solutions for specific entangled state types

Abstract

We address the process of generation of the photon-number entangled states of light in the stimulated nonlinear parametric down conversion process and build the simple model describing the generation, not involving the traditional parametric approximation. The motion equations for the system of pumping and two-mode outgoing field are solved for the case of the strong correlation between two modes, the evolution of the state parameters of the generated modes is obtained. The solution is briefly analyzed for particular types of photon-number entangled states.