528 citations · 5k across the 129 of their papers we have counts for
Showing 2001 · cond-matShow all
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cond-mat2001★ 107 cited
Phase fluctuations in atomic Bose gases
J. O. Andersen, U. Al Khawaja, H. T. C Stoof
We improve on the Popov theory for partially Bose-Einstein condensed atomic gases by treating the phase fluctuations exactly. As a result, the theory becomes valid in arbitrary dim…
cond-mat2001★ 75 cited
Skyrmion Physics in Bose-Einstein Ferromagnets
U. Al Khawaja, H. T. C. Stoof
We show that a ferromagnetic Bose-Einstein condensate has not only line-like vortex excitations, but in general also allows for point-like topological excitations, i.e., skyrmions.…