Generation of geometrical phases and persistent spin currents in 1-dimensional rings by Lorentz-violating terms
arXiv:1504.06027 · doi:10.1016/j.physletb.2015.04.053
Abstract
We have demonstrated that Lorentz-violating terms stemming from the fermion sector of the SME are able to generate geometrical phases on the wave function of electrons confined in 1-dimensional rings, as well as persistent spin currents, in the total absence of electromagnetic fields. We have explicitly evaluated the eigenenergies and eigenspinors of the electrons modified by the Lorentz-violating terms, using them to calculate the dynamic and the Aharonov-Anandan phases in the sequel. The total phase presents a pattern very similar to the Aharonov-Casher phase accumulated by electrons in rings under the action of the Rashba interaction. Finally, the persistent spin current were carried out and used to impose upper bounds on the Lorentz-violating parameters.
arXiv comment8 pages, revtex, two columns, final and revised version published in Phys.Lett.B (2015)
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