Resolved Atomic Interaction Sidebands in an Optical Clock Transition

M. Bishof, Y. Lin, M. D. Swallows, A. V. Gorshkov, J. Ye, and A. M. Rey
Phys. Rev. Lett. 106, 250801 – Published 22 June 2011
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Abstract

We report the observation of resolved atomic interaction sidebands (ISB) in the Sr87 optical clock transition when atoms at microkelvin temperatures are confined in a two-dimensional optical lattice. The ISB are a manifestation of the strong interactions that occur between atoms confined in a quasi-one-dimensional geometry and disappear when the confinement is relaxed along one dimension. The emergence of ISB is linked to the recently observed suppression of collisional frequency shifts. At the current temperatures, the ISB can be resolved but are broad. At lower temperatures, ISB are predicted to be substantially narrower and useful spectroscopic tools in strongly interacting alkaline-earth gases.

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  • Received 4 February 2011

DOI:https://doi.org/10.1103/PhysRevLett.106.250801

© 2011 American Physical Society

Authors & Affiliations

M. Bishof1, Y. Lin1, M. D. Swallows1, A. V. Gorshkov2, J. Ye1, and A. M. Rey1

  • 1JILA and Department of Physics, NIST and University of Colorado, Boulder, Colorado 80309-0440, USA
  • 2Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125, USA

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Issue

Vol. 106, Iss. 25 — 24 June 2011

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