Optimum spin-squeezing in Bose-Einstein condensates with particle losses

TL;DR

This paper analytically investigates the limits of spin squeezing in Bose-Einstein condensates considering particle losses, providing insights into optimal squeezing conditions based on loss rates and interaction parameters.

Contribution

It introduces an analytical solution for spin squeezing in bimodal condensates with particle losses using the Monte Carlo wavefunction method.

Findings

Maximum spin squeezing depends on loss rates and interaction parameters.

Optimal squeezing is achieved by balancing particle losses and interactions.

Analytical expressions for squeezing limits are derived.

Abstract

The problem of spin squeezing with a bimodal condensate in presence of particle losses is solved analytically by the Monte Carlo wavefunction method. We find the largest obtainable spin squeezing as a function of the one-body loss rate, the two-body and three-body rate constants, and the s-wave scattering length.