Scattering of spin 1/2 particles by the 2+1 dimensional noncommutative Aharonov-Bohm potential

Abstract

In this work we study modifications in the Aharonov-Bohm effect for relativistic spin 1/2 particles due to the noncommutativity of spacetime in $2+1$ dimensions. The noncommutativity gives rise to a correction to the Aharonov-Bohm potential which is highly singular at the origin, producing divergences in a perturbative expansion around the usual solution of the free Dirac equation. This problem is surmounted by using a perturbative expansion around the exact solution of the \textit{commutative} Aharonov-Bohm problem. We calculate, in this setting, the scattering amplitude and the corrections to the differential and total cross sections for a spin 1/2 particle, in the small-flux limit.

arXiv comment11 pages, to appear in Phys. Rev. D

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• Analogue Aharonov-Bohm effect in a Lorentz-violating background
• Noncommutativity due to spin
• Aharonov-Bohm effect in a Class of Noncommutative Theories
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