Topological vortex formation in a Bose-Einstein condensate

Details Topological vortex formation in a Bose-Einstein condensate Topological vortex formation in a Bose-Einstein condensate

2002-06-17

arxiv.org/abs/cond-mat/0206303v1

Phys. Rev. Lett. 89, 190403 (2002)

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.89.190403

Vortices were imprinted in a Bose-Einstein condensate using topological phases. Sodium condensates held in a Ioffe-Pritchard magnetic trap were transformed from a non-rotating state to one with quantized circulation by adiabatically inverting the magnetic bias field along the trap axis. Using surface wave spectroscopy, the axial angular momentum per particle of the vortex states was found to be consistent with $2\hbar$ or $4\hbar$, depending on the hyperfine state of the condensate.

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