Phys. Rev. A 61, 032106 (2000) [6 pages]Explicit generation of unitary transformations in a single atom or moleculeReceived 28 September 1998; published 14 February 2000 A constructive procedure for generating a prescribed unitary transform via the optically driven evolution of a multilevel atom is described. Assuming a clean separation of the coupled levels, the procedure employs the rotating wave approximation together with a decomposition of a unitary matrix into simpler matrix factors with specified structure. Applications to state preparation and observation are also provided. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.61.032106
DOI:
10.1103/PhysRevA.61.032106
PACS:
03.65.Bz
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