Vortex Quantum Creation and Winding Number Scaling in a Quenched Spinor Bose Gas

2006/12/31 by Michael Uhlmann, Ralf Schützhold, Uwe R. Fischer · 1 citation
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #cond-mat.other

paper · pdf · doi:10.1103/physrevlett.99.120407

published as Phys. Rev. Lett. 99, 120407 (2007) · 4+epsilon pages of RevTex4, 2 figures; to appear in Physical Review Letters

arxiv created 2007/07/27 · openalex publication_date 2007/09/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Motivated by a recent experiment, we study nonequilibrium 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 we establish a sample-size scaling law for the creation of spin vortices, which are topological defects in the transverse magnetization.

Citations

• Sweeping from the Superfluid to the Mott Phase in the Bose-Hubbard Model
• Topology of cosmic domains and strings

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• Dynamics of a quantum phase transition and relaxation to a steady state