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

We propose a multimeasurement estimation protocol for Quantum Nondemolition(QND) measurements in a Rabi clock interferometer. The method is well suitedfor current state-of-the-art optical lattice clocks with QND measurementcapabilities. The protocol exploits the correlations between multiplenon-destructive measurements of the initially prepared coherent spin state. Asuitable Gaussian estimator for the clock laser detuning is presented, and ananalytic expression for the sensitivity of the protocol is derived. We use thisanalytic expression to optimise the protocol using available experimentalparameters, achieving an improvement of $7.9$dB with respect to the standardquantum limit (SQL) in terms of clock stability. We also discuss themeasurement back-action effects of our protocol into the atomic state.

Improving Short-Term Stability in Optical Lattice Clocks by Quantum Nondemolition Measurements