Noise-resistant optimal spin squeezing via quantum control

TL;DR

This paper introduces a noise-resistant optimal control protocol that significantly enhances spin squeezing in many-body quantum systems, improving quantum sensor performance despite noise and imperfections.

Contribution

It presents a novel optimal control method that is robust to noise, outperforming traditional approaches in generating spin squeezed states.

Findings

Enhanced spin squeezing achieved with the proposed control protocol

Protocol maintains robustness in noisy, imperfect conditions

Potential for improved quantum sensors and atomic clocks

Abstract

Entangled atomic states, such as spin squeezed states, represent a promising resource for a new generation of quantum sensors and atomic clocks. We demonstrate that optimal control techniques can be used to substantially enhance the degree of spin squeezing in strongly interacting many-body systems, even in the presence of noise and imperfections. Specifically, we present a protocol that is robust to noise which outperforms conventional methods. Potential experimental implementations are discussed.