A quantum stochastic calculus approach to modeling double-pass atom-field coupling

TL;DR

This paper uses quantum stochastic calculus to analyze a double-pass atom-field system, confirming polarization squeezing results and demonstrating the potential for atomic spin squeezing up to 3 dB.

Contribution

It applies quantum stochastic calculus to model and analyze the system, providing new insights into atomic spin squeezing and output field statistics.

Findings

Confirmed polarization-squeezed light generation using QSC

Demonstrated atomic spin squeezing up to 3 dB

Validated previous results with a new formalism

Abstract

We examine a proposal by Sherson and Moelmer to generate polarization-squeezed light in terms of the quantum stochastic calculus (QSC). We investigate the statistics of the output field and confirm their results using the QSC formalism. In addition, we study the atomic dynamics of the system and find that this setup can produce up to 3 dB of atomic spin squeezing.