Quasirelativistic behavior of cold atoms in light fields

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Authors

  • Gediminas Juzeliunas
  • Julius Ruseckas
  • Markus Lindberg
  • Luis Santos
  • Patrik Öhberg

Research Organisations

External Research Organisations

  • Vilnius University
  • Abo Akademi University
  • Heriot-Watt University
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Details

Original languageEnglish
Article number011802
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume77
Issue number1
Publication statusPublished - 29 Jan 2008

Abstract

We study the influence of three laser beams on the center-of-mass motion of cold atoms with internal energy levels in a tripod configuration. We show that, as for electrons in graphene, the atomic motion can be equivalent to the dynamics of ultrarelativistic two-component Dirac fermions. We propose and analyze an experimental setup for observing such a quasirelativistic motion of ultracold atoms. We demonstrate that the atoms can experience negative refraction and focusing by Veselago-type lenses. We also show how the chiral nature of the atomic motion manifests itself as an oscillation of the atomic internal state population, which depends strongly on the direction of the center-of-mass motion. For certain directions an atom remains in its initial state, whereas for other directions the populations undergo oscillations between a pair of internal states.

ASJC Scopus subject areas

Cite this

Quasirelativistic behavior of cold atoms in light fields. / Juzeliunas, Gediminas; Ruseckas, Julius; Lindberg, Markus et al.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 77, No. 1, 011802, 29.01.2008.

Research output: Contribution to journalArticleResearchpeer review

Juzeliunas, G., Ruseckas, J., Lindberg, M., Santos, L., & Öhberg, P. (2008). Quasirelativistic behavior of cold atoms in light fields. Physical Review A - Atomic, Molecular, and Optical Physics, 77(1), Article 011802. https://doi.org/10.1103/PhysRevA.77.011802
Juzeliunas G, Ruseckas J, Lindberg M, Santos L, Öhberg P. Quasirelativistic behavior of cold atoms in light fields. Physical Review A - Atomic, Molecular, and Optical Physics. 2008 Jan 29;77(1):011802. doi: 10.1103/PhysRevA.77.011802
Juzeliunas, Gediminas ; Ruseckas, Julius ; Lindberg, Markus et al. / Quasirelativistic behavior of cold atoms in light fields. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2008 ; Vol. 77, No. 1.
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