Vortex quantum creation and winding number scaling in a quenched spinor Bose gas

Details Vortex quantum creation and winding number scaling in a quenched spinor Bose gas Vortex quantum creation and winding number scaling in a quenched spinor Bose gas

2006-12-28

arxiv.org/abs/cond-mat/0612664v4

Phys. Rev. Lett. 99, 120407 (2007)

Physics

Condensed Matter

Other Condensed Matter

4+epsilon pages of RevTex4, 2 figures; to appear in Physical Review Letters

Scientific paper

10.1103/PhysRevLett.99.120407

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.

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