Aharonov-Bohm-Casher Problem with a nonminimal Lorentz-violating coupling

Details Aharonov-Bohm-Casher Problem with a nonminimal Lorentz-violating coupling Aharonov-Bohm-Casher Problem with a nonminimal Lorentz-violating coupling

2011-06-04

arxiv.org/abs/1106.0789v1

Phys.Rev.D83:125025,2011

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.83.125025

The Aharonov-Bohm-Casher problem is examined for a charged particle describing a circular path in presence of a Lorentz-violating background nonminimally coupled to a spinor and a gauge field. It were evaluated the particle eigenenergies, showing that the LV background is able to lift the original degenerescence in the absence of magnetic field and even for a neutral particle. The Aharonov-Casher phase is used to impose an upper bound on the background magnitude. A similar analysis is accomplished in a space endowed with a topological defect, revealing that both the disclination parameter and the LV background are able to modify the particle eigenenergies. We also analyze the particular case where the particle interacts harmonically with the topological defect and the LV background, with similar results.

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