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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Dipole-Dipole Frequency Shifts in Multilevel Atoms

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Cidrim, A. [1, 2, 3] ; Orioli, A. Pineiro [2, 3] ; Sanner, C. [2] ; Hutson, R. B. [2] ; Ye, J. [2] ; Bachelard, R. [1] ; Rey, A. M. [2, 3]
Total Authors: 7
[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Colorado, Dept Phys, NIST, JILA, Boulder, CO 80309 - USA
[3] Univ Colorado, Ctr Theory Quantum Matter, Boulder, CO 80309 - USA
Total Affiliations: 3
Document type: Journal article
Source: Physical Review Letters; v. 127, n. 1 JUN 30 2021.
Web of Science Citations: 0

Dipole-dipole interactions lead to frequency shifts that are expected to limit the performance of next-generation atomic clocks. In this work, we compute dipolar frequency shifts accounting for the intrinsic atomic multilevel structure in standard Ramsey spectroscopy. When interrogating the transitions featuring the smallest Clebsch-Gordan coefficients, we fmd that a simplified two-level treatment becomes inappropriate, even in the presence of large Zeeman shifts. For these cases, we show a net suppression of dipolar frequency shifts and the emergence of dominant nonclassical effects for experimentally relevant parameters. Our findings are pertinent to current generations of optical lattice and optical tweezer clocks, opening a way to further increase their current accuracy, and thus their potential to probe fundamental and many-body physics. (AU)

FAPESP's process: 18/15554-5 - Transport and localization of light in two and three dimensions
Grantee:Romain Pierre Marcel Bachelard
Support type: Research Grants - Young Investigators Grants - Phase 2
FAPESP's process: 18/18353-0 - Quantum correlations and entanglement in atomic clocks
Grantee:André Cidrim Santos
Support type: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 19/13143-0 - Cold atoms, photons, and quantum correlations
Grantee:Celso Jorge Villas-Bôas
Support type: Regular Research Grants
FAPESP's process: 17/09390-7 - Entanglement and blockade effects in ultracold atomic clouds
Grantee:André Cidrim Santos
Support type: Scholarships in Brazil - Post-Doctorate