Phys. Rev. Lett. 89, 103001 (2002) [4 pages]Coupling a Single Atomic Quantum Bit to a High Finesse Optical CavityReceived 5 February 2002; published 13 August 2002 The quadrupole S1/2–D5/2 optical transition of a single trapped Ca+ ion, well suited for encoding a quantum bit of information, is coherently coupled to the standing wave field of a high finesse cavity. The coupling is verified by observing the ion’s response to both spatial and temporal variations of the intracavity field. We also achieve deterministic coupling of the cavity mode to the ion’s vibrational state by selectively exciting vibrational state-changing transitions and by controlling the position of the ion in the standing wave field with nanometer precision. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.103001
DOI:
10.1103/PhysRevLett.89.103001
PACS:
32.80.Pj, 03.67.–a, 42.50.Ct
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