Strathprints logo
Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states

Ruseckas, J. and Juzeliunas, G. and Ohberg, P. and Fleischhauer, M. (2005) Non-Abelian gauge potentials for ultra-cold atoms with degenerate dark states. Physical Review Letters, 95 (1). 010404. ISSN 0031-9007

[img]
Preview
PDF (strathprints005826.pdf)
Download (145Kb) | Preview

    Abstract

    We show that the adiabatic motion of ultracold, multilevel atoms in spatially varying laser fields can give rise to effective non-Abelian gauge fields if degenerate adiabatic eigenstates of the atom-laser interaction exist. A pair of such degenerate dark states emerges, e.g., if laser fields couple three internal states of an atom to a fourth common one under pairwise two-photon-resonance conditions. For this so-called tripod scheme we derive general conditions for truly non-Abelian gauge potentials and discuss special examples. In particular we show that using orthogonal laser beams with orbital angular momentum an effective magnetic field can be generated that has a monopole component.

    Item type: Article
    ID code: 5826
    Keywords: dark states, quantum optics, eigenvalues, eigenfunctions, two-photon processes, Optics. Light, Physics and Astronomy(all)
    Subjects: Science > Physics > Optics. Light
    Department: Faculty of Science > Physics
    Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 11 Apr 2008
    Last modified: 05 Sep 2014 04:15
    URI: http://strathprints.strath.ac.uk/id/eprint/5826

    Actions (login required)

    View Item

    Fulltext Downloads: