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

Abstract

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.

4 pages, 4 figures

References in corpus (3)

• Strong dipolar effects in a quantum ferrofluid
• Observation of dipole-dipole interaction in a degenerate quantum gas
• Stabilizing a purely dipolar quantum gas against collapse

Cited by in corpus (8)

• Magnetic dipolar interaction in an atomic Bose Einstein condensate interferometer
• Vortices in dipolar condensates with dominant dipolar interactions
• Coherent collapse of a dipolar Bose-Einstein condensate for different trap geometries
• Stability of a BEC with Higher-order Interactions near a Feshbach Resonance
• Solitons in Tonks-Girardeau gas with dipolar interactions
• Numerical method for evolving the dipolar projected Gross-Pitaevskii equation
• Universality in Ultra-Cold Few- and Many-Boson Systems
• Observing collapse in two colliding dipolar Bose-Einstein condensates