A purely dipolar quantum gas
Abstract
We report on experiments exploring the physics of dipolar quantum gases using a Chromium Bose-Einstein condensate (BEC). By means of a Feshbach resonance, it is possible to reduce the effects of short range interactions and reach a regime where the physics is governed by the long-range, anisotropic dipole-dipole interaction between the large () magnetic moments of Chromium atoms. Several dramatic effects of the dipolar interaction are observed: the usual inversion of ellipticity of the condensate during time-of flight is inhibited, the stability of the dipolar gas depends strongly on the trap geometry, and the explosion following the collapse of an unstable dipolar condensate displays d-wave like features.
Cite
@article{arxiv.0808.3876,
title = {A purely dipolar quantum gas},
author = {T. Lahaye and J. Metz and T. Koch and B. Fröhlich and A. Griesmaier and T. Pfau},
journal= {arXiv preprint arXiv:0808.3876},
year = {2017}
}
Comments
To appear in "ATOMIC PHYSICS 21", proceedings of the XXI International Conference on Atomic Physics (ICAP 2008)