Quantum properties of a parametric four-wave mixing in a Raman-type atomic system

TL;DR

This paper investigates the quantum characteristics of two light fields in a Raman-type atomic system undergoing parametric four-wave mixing, demonstrating control over squeezing, amplitude, and entanglement for quantum state engineering.

Contribution

It introduces a scheme to control quantum properties of light fields via an effective Hamiltonian in a Raman atomic system, enabling quantum state engineering.

Findings

Realizes an effective beamsplitter-type Hamiltonian for light fields.

Demonstrates control over squeezing and amplitude distribution.

Achieves entanglement of the light fields.

Abstract

We present a study of the quantum properties of two light fields used to parametric four-wave mixing in a Raman-type atomic system. The system realizes an effective Hamiltonian of beamsplitter type coupling between the light fields, which allows to control squeezing and amplitude distribution of the light fields, as well as realizing their entanglement. The scheme can be feasibly applied to engineer the quantum properties of two single-mode light fields in properly chosen input states.