The Mass of a Spin Vortex in a Bose-Einstein Condensate

Details The Mass of a Spin Vortex in a Bose-Einstein Condensate The Mass of a Spin Vortex in a Bose-Einstein Condensate

2009-02-20

arxiv.org/abs/0902.3685v2

Phys. Rev. Lett. 103, 080603 (2009)

Physics

Condensed Matter

Other Condensed Matter

5 pages, 3 figures; 2nd version has added reference

Scientific paper

In contrast to charge vortices in a superfluid, spin vortices in a ferromagnetic condensate move inertially (if the condensate has zero magnetization along an axis). The mass of spin vortices depends on the spin-dependent interactions, and can be measured as a part of experiments on how spin vortices orbit one another. For Rb87 in a 1 micron thick trap m_v is about 10^-21 kg.

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