Europhys. Lett.
Volume 71, Number 2, July 2005
Page(s) 214 - 220
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 17 June 2005
Europhys. Lett., 71 (2), pp. 214-220 (2005)
DOI: 10.1209/epl/i2005-10083-5

Probing the light-induced dipole-dipole interaction in momentum space

R. Löw1, R. Gati2, J. Stuhler1 and T. Pfau1

1  5. Physikalisches Institut, Universität Stuttgart - 70550 Stuttgart, Germany
2  Kirchhoff Institut, Universität Heidelberg - 69120 Heidelberg, Germany

received 4 March 2005; accepted in final form 26 May 2005
published online 17 June 2005

We theoretically investigate the mechanical effect of the light-induced dipole-dipole interaction potential on the atoms in a Bose-Einstein condensate. We present numerical calculations on the magnitude and shape of the induced potentials for different experimentally accessible geometries. It is shown that the mechanical effect can be distinguished from the effect of incoherent scattering for an experimentally feasible setting.

42.50.Ct - Quantum description of interaction of light and matter; related experiments.
34.20.Cf - Interatomic potentials and forces.
03.75.-b - Matter waves.

© EDP Sciences 2005