d-wave collapse and explosion of a dipolar Bose-Einstein condensate

Details d-wave collapse and explosion of a dipolar Bose-Einstein condensate d-wave collapse and explosion of a dipolar Bose-Einstein condensate

2008-03-17

arxiv.org/abs/0803.2442v2

Phys. Rev. Lett. 101, 080401 (2008)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.080401

We investigate the collapse dynamics of a dipolar condensate of 52Cr atoms when the s-wave scattering length characterizing the contact interaction is reduced below a critical value. A complex dynamics, involving an anisotropic, d-wave symmetric explosion of the condensate, is observed. The atom number decreases abruptly during the collapse. We find good agreement between our experimental results and those of a numerical simulation of the three-dimensional Gross-Pitaevskii equation, including contact and dipolar interactions as well as three-body losses. The simulation indicates that the collapse induces the formation of two vortex rings with opposite circulations.

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