Spontaneous squeezing of a vortex in an optical lattice

Details Spontaneous squeezing of a vortex in an optical lattice Spontaneous squeezing of a vortex in an optical lattice

2003-11-17

arxiv.org/abs/cond-mat/0311382v2

Phys. Rev. A 70, 013604 (2004)

Physics

Condensed Matter

Statistical Mechanics

8 pages, 3 figures, more details added, some new citations

Scientific paper

10.1103/PhysRevA.70.013604

We study the equilibrium states of a vortex in a Bose-Einstein condensate in a one-dimensional optical lattice. We find that quantum effects can be important and that it is even possible for the vortex to be strongly squeezed, which reflects itself in a different quantum mechanical uncertainty of the vortex position in two orthogonal directions. The latter is observable by measuring the atomic density after an expansion of the Bose-Einstein condensate in the lattice.

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