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

Journal Article · Fri Sep 21 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.120407· OSTI ID:21024164

Uhlmann, Michael; Schuetzhold, Ralf ^[1]; Fischer, Uwe R ^[2]

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1. Institut fuer Theoretische Physik, Technische Universitaet Dresden, D-01062 Dresden (Germany)
2. Eberhard-Karls-Universitaet Tuebingen, Institut fuer Theoretische Physik, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

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.

• OSTI ID: 21024164
• Journal Information: Physical Review Letters, Vol. 99, Issue 12; Other Information: DOI: 10.1103/PhysRevLett.99.120407; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
DOMAIN STRUCTURE
MAGNETIZATION
PARAMAGNETISM
PHASE TRANSFORMATIONS
QUANTUM MECHANICS
SCALING LAWS
SPIN
TOPOLOGY