Phys. Rev. Lett. 97, 083602 (2006) [4 pages]Cooling to the Ground State of Axial Motion for One Atom Strongly Coupled to an Optical CavityReceived 11 June 2006; published 23 August 2006 Localization to the ground state of axial motion is demonstrated for a single, trapped atom strongly coupled to the field of a high finesse optical resonator. The axial atomic motion is cooled by way of coherent Raman transitions on the red vibrational sideband. An efficient state detection scheme enabled by strong coupling in cavity QED is used to record the Raman spectrum, from which the state of atomic motion is inferred. We find that the lowest vibrational level of the axial potential with zero-point energy ℏωa/2kB=13 μK is occupied with probability P0≃0.95. © 2006 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.97.083602
DOI:
10.1103/PhysRevLett.97.083602
PACS:
42.50.Pq, 03.67.−a, 32.80.Pj
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