Abstract
The modification of the properties of a Bose-Einstein or a Fermi-Dirac atomic gas due to laser-induced dipole-dipole interactions between the atoms are considered. Nearly-isotropic illumination of the sample by spectrally-fluctuating laser beams averages out the static r −3 dipole-dipole interaction, leaving the retarded r −1 “selfgravitating” attraction in the near zone. The analogies of ultracold many-atom systems, self-bound by such laser-induced “gravity”, with compact stars (“Bose stars” or “White Dwarfs”) are emphasized. Even a single plane-wave laser induces dipole-dipole interactions capable of causing a cigar-shaped Bose condensate to exhibit self binding and density modulations.
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Kurizki, G., Giovanazzi, S., O’Dell, D., Artemiev, A.I. (2002). New Regimes in Cold Gases via Laser-Induced Long-Range Interactions. In: Dauxois, T., Ruffo, S., Arimondo, E., Wilkens, M. (eds) Dynamics and Thermodynamics of Systems with Long-Range Interactions. Lecture Notes in Physics, vol 602. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45835-2_12
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