Observation of dipole-dipole interaction in a degenerate quantum gas

Details Observation of dipole-dipole interaction in a degenerate quantum gas Observation of dipole-dipole interaction in a degenerate quantum gas

2005-08-09

arxiv.org/abs/cond-mat/0508228v2

Phys. Rev. Lett. 95, 150406 (2005)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.95.150406

We have investigated the expansion of a Bose-Einstein condensate (BEC) of strongly magnetic chromium atoms. The long-range and anisotropic magnetic dipole-dipole interaction leads to an anisotropic deformation of the expanding Cr-BEC which depends on the orientation of the atomic dipole moments. Our measurements are consistent with the theory of dipolar quantum gases and show that a Cr-BEC is an excellent model system to study dipolar interactions in such gases.

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