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Deterministic nuclear spin squeezing and squeezing by continuous measurement using vector and tensor light shifts
by Alice Sinatra, Ali Moshiri
Submission summary
| Authors (as registered SciPost users): | Ali Moshiri |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202508_00007v2 (pdf) |
| Date submitted: | Dec. 19, 2025, 4:56 p.m. |
| Submitted by: | Ali Moshiri |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
We study the joint effects of vector and tensor light shifts in a set of large spin atoms, prepared in a polarized state and interacting with light. Depending on the ratio $\epsilon$ between tensor and vector coupling and a measurement rate $\Gamma$, we identify a regime of quantum non-demolition measurement squeezing for times shorter than $(\sqrt{\epsilon}\Gamma)^{-1}$, and a deterministic squeezing regime for times longer than $(\epsilon \Gamma)^{-1}$. We apply our results to fermionic isotopes of strontium, ytterbium, and helium, which are atoms with purely nuclear spin in their ground state, benefiting from very low decoherence. For ytterbium 173, with a cavity such as that of \cite{Thompson2021}, it would be possible to achieve an atomic spin variance reduction of $0.03$ in $\simeq 50 \rm ms$.
Author indications on fulfilling journal expectations
- Provide a novel and synergetic link between different research areas.
- Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
- Detail a groundbreaking theoretical/experimental/computational discovery
- Present a breakthrough on a previously-identified and long-standing research stumbling block
Author comments upon resubmission
We would like to thank you and the two reviewers for the quality and insightfulness of the reports we received.
Based on their comments, we have made several changes (marked in red in a file merged with the detailed answers to the referees) which we believe have improved the clarity of the article.
Sincerely yours,
The authors