Spin squeezing in a Rydberg lattice clock

TL;DR

This paper proposes a method to generate significant spin squeezing in atomic lattice clocks by optically dressing atoms to Rydberg states, enhancing clock precision without disrupting operation.

Contribution

It introduces a theoretical approach to achieve spin squeezing in lattice clocks through Rydberg state dressing, enabling switchable interactions for improved metrology.

Findings

Over 10 dB of squeezing achieved in microseconds

Method is compatible with existing clock operations

Potential for enhanced clock precision

Abstract

Squeezed many-body states of atoms are a valuable resource for high precision frequency metrology and could tremendously boost the performance of atomic lattice clocks. Here, we theoretically demonstrate a viable approach to spin squeezing in lattice clocks via optical dressing of one clock state to a highly excited Rydberg state, generating switchable atomic interactions. For realistic experimental parameters, this is shown to generate over 10 dB of squeezing in a few microseconds interaction time without affecting the subsequent clock interrogation.