https://doi.org/10.1140/epjd/e2008-00074-6
Self-organization of a Bose-Einstein condensate in an optical cavity
Research Institute for Solid State Physics and Optics, P.O. Box 49, 1525 Budapest, Hungary
Corresponding author: a szirmai@optics.szfki.kfki.hu
Received:
30
January
2008
Revised:
5
March
2008
Published online:
18
April
2008
The spatial self-organization of a Bose-Einstein condensate (BEC) in a high-finesse linear optical cavity is discussed. The condensate atoms are laser-driven from the side and scatter photons into the cavity. Above a critical pump intensity the homogeneous condensate evolves into a stable pattern bound by the cavity field. The transition point is determined analytically from a mean-field theory. We calculate the lowest lying Bogoliubov excitations of the coupled BEC-cavity system and the quantum depletion due to the atom-field coupling.
PACS: 03.75.Kk – Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow / 37.10.Vz – Mechanical effects of light on atoms, molecules, and ions
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2008
