English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Atomic comagnetometers, which measure the spin precession frequencies ofoverlapped species simultaneously, are widely applied to search for exoticspin-dependent interactions. Here we propose and implement an all-opticalsingle-species Cs atomic comagnetometer based on the optical free inductiondecay (FID) signal of Cs atoms in hyperfine levels $F_g=3~\&~4$ within the sameatomic ensemble. We experimentally show that systematic errors induced bymagnetic field gradients and laser fields are highly suppressed in thecomagnetometer, but those induced by asynchronous optical pumping and drift ofresidual magnetic field in the shield dominate the uncertainty of thecomagnetometer. With this comagnetometer system, we set the constraint on thestrength of spin-gravity coupling of the proton at a level of $10^{-18}$ eV,comparable to the most stringent one. With further optimization in magneticfield stabilization and spin polarization, the systematic errors can beeffectively suppressed, and signal-to-noise ratio (SNR) can be improved,promising to set more stringent constraints on spin-gravity interactions.

All-Optical Single-Species Cesium Atomic Comagnetometer with Optical Free Induction Decay Detection