@article{12333,
  author = {A. Cidrim and Asier Piñeiro Orioli and Christian Sanner and Ross Hutson and Jun Ye and R. Bachelard and Ana Maria Rey},
  title = {Dipole-dipole frequency shifts in multilevel atoms},
  abstract = {<p>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 find 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 non-classical 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.</p>
},
  year = {2021},
  journal = {Physical Review Letters},
  volume = {127},
  pages = {013401},
  month = {2021-06},
  url = {https://link.aps.org/doi/10.1103/PhysRevLett.127.013401},
  doi = {10.1103/PhysRevLett.127.013401},
}