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Published June 22, 2011 | Submitted + Published + Supplemental Material
Journal Article Open

Resolved Atomic Interaction Sidebands in an Optical Clock Transition

Abstract

We report the observation of resolved atomic interaction sidebands (ISB) in the ^(87)Sr 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.

Additional Information

© 2011 American Physical Society. Received 4 February 2011; published 22 June 2011. We thank M. Martin and S. Blatt. This work was supported by ARO DARPA OLE, NIST, NSF, AFOSR, NRC, Lee A. DuBridge Foundation, and NDSEG.

Attached Files

Published - Bishof2011p14621Phys_Rev_Lett.pdf

Submitted - 1102.1016v2.pdf

Supplemental Material - README.TXT

Supplemental Material - Supplementary2_resu.pdf

Supplemental Material - Supplementary2_resu.tex

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