Two-dimensional atom localization in a four-level tripod system in laser fields

Vladimir Ivanov and Yuri Rozhdestvensky
Phys. Rev. A 81, 033809 – Published 8 March 2010

Abstract

We propose a scheme for two-dimensional (2D) atom localization in a four-level tripod system under an influence of two orthogonal standing-wave fields. Position information of the atom is retained in the atomic internal states by an additional probe field either of a standing or of a running wave. It is shown that the localization factors depend crucially on the atom-field coupling that results in such spatial structures of populations as spikes, craters, and waves. We demonstrate a high-precision localization due to measurement of population in the upper state or in any ground state.

    • Received 5 September 2009

    DOI:https://doi.org/10.1103/PhysRevA.81.033809

    ©2010 American Physical Society

    Authors & Affiliations

    Vladimir Ivanov1,2,* and Yuri Rozhdestvensky2,†

    • 1Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FIN-20014 Turku, Finland
    • 2Saint Petersburg State University of Information Technologies, Mechanics and Optics, 197101 St. Petersburg, Russia

    • *ivvl82@gmail.com
    • rozd-yu@mail.ru

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    Issue

    Vol. 81, Iss. 3 — March 2010

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