Vortex quantum creation and winding number scaling in a quenched spinor Bose gas
Other Condensed Matter
2007-09-19 v4
Abstract
Motivated by a recent experiment, we study non-equilibrium quantum phenomena taking place in the quench of a spinor Bose-Einstein condensate through the zero-temperature phase transition separating the polar paramagnetic and planar ferromagnetic phases. We derive the typical spin domain structure (correlations of the effective magnetization) created by the quench arising due to spin-mode quantum fluctuations, and establish a sample-size scaling law for the creation of spin vortices, which are topological defects in the transverse magnetization.
Keywords
Cite
@article{arxiv.cond-mat/0612664,
title = {Vortex quantum creation and winding number scaling in a quenched spinor Bose gas},
author = {Michael Uhlmann and Ralf Schützhold and Uwe R. Fischer},
journal= {arXiv preprint arXiv:cond-mat/0612664},
year = {2007}
}
Comments
4+epsilon pages of RevTex4, 2 figures; to appear in Physical Review Letters