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Type: Artigo de periódico
Title: Generation of electric field by spin-currents in the U(1) x SU(2) gauge invariant Pauli-Schrodinger non-relativistic theory
Author: Dartora, CA
Cabrera, GG
Abstract: The non-relativistic Pauli-Schrodinger theory has a richer gauge structure than usually expected, being invariant under the U(1) x SU(2) gauge group, which allows to define spin-current density vectors and obtains the relevant conserved quantities from Noether's theorem. The electromagnetic fields E and B play the role of the gauge potentials for the SU(2) sector of the gauge group and can possibly contribute with a corresponding invariant curvature self-energy term in the Lagrangian density. From the dynamics of the U(1) and SU(2) gauge fields we show that electric fields can be induced by spin-currents originated from the SU(2) gauge symmetry. (C) 2010 Elsevier B.V. All rights reserved.
Subject: Spintronics
Gauge invariance
Pauli-Schrodinger Lagrangian
SU(2) gauge group
Country: Holanda
Editor: Elsevier Science Bv
Citation: Physics Letters A. Elsevier Science Bv, v. 374, n. 25, n. 2596, n. 2599, 2010.
Rights: fechado
Identifier DOI: 10.1016/j.physleta.2010.04.041
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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