Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
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Thompson-2013-Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer.pdf
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Author(s)
Thompson, J. D.
Zibrov, A. S.
Lukin, M. D.
Tiecke, Tobias G.
Vuletic, Vladan
Date Issued
March 2013
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Thompson, J. D., T. G. Tiecke, A. S. Zibrov, V. Vuletić, and M. D. Lukin. Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer. Physical Review Letters 110, no. 13 (March 2013). © 2013 American Physical Society
Version
Final published version
Abstract
We investigate quantum control of a single atom in a tightly focused optical tweezer trap. We show that inevitable spatially varying polarization gives rise to significant internal-state decoherence but that this effect can be mitigated by an appropriately chosen magnetic bias field. This enables Raman sideband cooling of a single atom close to its three-dimensional ground state (vibrational quantum numbers n̅ [subscript x]=n̅ [subscript y]=0.01, n̅ [subscript z]=8) even for a trap beam waist as small as w=900 nm. The small atomic wave packet with δx=δy=24 nm and δz=270 nm represents a promising starting point for future hybrid quantum systems where atoms are placed in close proximity to surfaces.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.110.133001
