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Critical velocity in cylindrical Bose-Einstein condensates

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Reference P.O. Fedichev and G.V. Shlyapnikov, Critical velocity in cylindrical Bose-Einstein condensates, Phys. Rev. A 63, (Article number: 45601), 1-3 (2001)

We describe a dramatic decrease of the critical velocity in elongated cylindrical Bose-Einstein condensates which originates from the nonuniform character of the radial density profile. We discuss this mechanism with respect to recent measurements at MIT.

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