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

Michael Uhlmann, Ralf Schützhold, and Uwe R. Fischer
Phys. Rev. Lett. 99, 120407 – Published 18 September 2007

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.

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  • Received 3 April 2007

DOI:https://doi.org/10.1103/PhysRevLett.99.120407

©2007 American Physical Society

Authors & Affiliations

Michael Uhlmann1, Ralf Schützhold1, and Uwe R. Fischer2

  • 1Institut für Theoretische Physik, Technische Universität Dresden, D-01062 Dresden, Germany
  • 2Eberhard-Karls-Universität Tübingen, Institut für Theoretische Physik, Auf der Morgenstelle 14, D-72076 Tübingen, Germany

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Vol. 99, Iss. 12 — 21 September 2007

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Heating up of Superconductors
January 27, 2017

This collection marks the 30th anniversary of the discovery of high-temperature superconductors. The papers selected highlight some of the advances that have been made to date, both in understanding why these compounds behave in the way they do, and in utilizing them in applications. The papers included in the collection have been made free to read.

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