Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer

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 Ra...

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Main Authors: Thompson, J. D., Zibrov, A. S., Lukin, M. D., Tiecke, Tobias G., Vuletic, Vladan
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2013
Online Access:http://hdl.handle.net/1721.1/79588
https://orcid.org/0000-0002-9786-0538
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author Thompson, J. D.
Zibrov, A. S.
Lukin, M. D.
Tiecke, Tobias G.
Vuletic, Vladan
author2 Massachusetts Institute of Technology. Department of Physics
author_facet Massachusetts Institute of Technology. Department of Physics
Thompson, J. D.
Zibrov, A. S.
Lukin, M. D.
Tiecke, Tobias G.
Vuletic, Vladan
author_sort Thompson, J. D.
collection MIT
description 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.
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spelling mit-1721.1/795882022-10-01T05:45:11Z Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer Thompson, J. D. Zibrov, A. S. Lukin, M. D. Tiecke, Tobias G. Vuletic, Vladan Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Research Laboratory of Electronics MIT-Harvard Center for Ultracold Atoms Tiecke, T. G. Vuletic, V. 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. National Science Foundation (U.S.) United States. Defense Advanced Research Projects Agency United States. Air Force Office of Scientific Research. Multidisciplinary University Research Initiative MIT-Harvard Center for Ultracold Atoms David & Lucile Packard Foundation 2013-07-11T20:38:04Z 2013-07-11T20:38:04Z 2013-03 2012-09 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/79588 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 https://orcid.org/0000-0002-9786-0538 en_US http://dx.doi.org/10.1103/PhysRevLett.110.133001 Physical Review Letters 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. application/pdf American Physical Society APS
spellingShingle Thompson, J. D.
Zibrov, A. S.
Lukin, M. D.
Tiecke, Tobias G.
Vuletic, Vladan
Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
title Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
title_full Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
title_fullStr Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
title_full_unstemmed Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
title_short Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer
title_sort coherence and raman sideband cooling of a single atom in an optical tweezer
url http://hdl.handle.net/1721.1/79588
https://orcid.org/0000-0002-9786-0538
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