Creation and detection of skyrmions in a Bose-Einstein condensate

Details Creation and detection of skyrmions in a Bose-Einstein condensate Creation and detection of skyrmions in a Bose-Einstein condensate

2009-10-26

arxiv.org/abs/0910.4918v1

Phys.Rev.Lett.103:250401,2009

Physics

Condensed Matter

Quantum Gases

4 pages, 3 figures, accepted for publication in PRL

Scientific paper

10.1103/PhysRevLett.103.250401

We present the first experimental realization and characterization of two-dimensional skyrmions and half-skyrmions in a spin-2 Bose-Einstein condensate. The continuous rotation of the local spin of the skyrmion through an angle of pi (and half-skyrmion through an angle of pi/2) across the cloud is confirmed by the spatial distribution of the three spin states as parameterized by the bending angle of the ell-vector. The winding number, w = (0, 1, 2), of the skyrmions is confirmed through matter-wave interference.

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