Deterministic nuclear spin squeezing and squeezing by continuous measurement using vector and tensor light shifts, by Ali Moshiri, Alice Sinatra
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SciPost Physics Home Authoring Refereeing Submit a manuscript About Deterministic nuclear spin squeezing and squeezing by continuous measurement using vector and tensor light shifts Ali Moshiri, Alice Sinatra SciPost Phys. 20, 069 (2026) · published 5 March 2026 doi: 10.21468/SciPostPhys.20.3.069 pdf BiBTeX RIS Submissions/Reports 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 [J. A. Muniz et al., Phys. Rev. Res. 3, 023152 (2021)], it would be possible to achieve an atomic spin variance reduction of $0.03$ in $\simeq 50 \rm ms$. × TY - JOURPB - SciPost FoundationDO - 10.21468/SciPostPhys.20.3.069TI - Deterministic nuclear spin squeezing and squeezing by continuous measurement using vector and tensor light shiftsPY - 2026/03/05UR - https://scipost.org/SciPostPhys.20.3.069JF - SciPost PhysicsJA - SciPost Phys.VL - 20IS - 3SP - 069A1 - Moshiri, AliAU - Sinatra, AliceAB - 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 [J. A. Muniz et al., Phys. Rev. Res. 3, 023152 (2021)], it would be possible to achieve an atomic spin variance reduction of $0.03$ in $\simeq 50 \rm ms$.ER - × @Article{10.21468/SciPostPhys.20.3.069, title={{Deterministic nuclear spin squeezing and squeezing by continuous measurement using vector and tensor light shifts}}, author={Ali Moshiri and Alice Sinatra}, journal={SciPost Phys.}, volume={20}, pages={069}, year={2026}, publisher={SciPost}, doi={10.21468/SciPostPhys.20.3.069}, url={https://scipost.org/10.21468/SciPostPhys.20.3.069},} Ontology / Topics See full Ontology or Topics database. Open quantum systems Quantum states Ultracold atoms quantum sensing Authors / Affiliations: mappings to Contributors and Organizations See all Organizations. 1 2 3 4 5 Ali Moshiri, 1 2 3 4 5 Alice Sinatra 1 Collège de France 2 Sorbonne Université / Sorbonne University 3 École Normale Supérieure [ENS] 4 Laboratoire Kastler Brossel / Kastler-Brossel Laboratory [LKB] 5 Université de recherche Paris Sciences et Lettres / PSL Research University [PSL]