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arXiv · 1105.2774

Phase-Space Noncommutativity and the Dirac Equation

Orfeu Bertolami·Raquel Queiroz
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Abstract

We consider full phase-space noncommutativity in the Dirac equation, and find that in order to preserve gauge invariance, configuration space noncommutativity must be dropped. The resulting space structure gives rise to a constant magnetic field background and this effect is explicitly seen on the spectrum of the hydrogen atom. Computing this spectrum we find a bound on the momentum noncommutative parameter $\eta$, $\sqrt{\eta}\lsim2.26\mu eV/c$.

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Orfeu Bertolami, Raquel Queiroz. 2011-05-13. Phase-Space Noncommutativity and the Dirac Equation. https://doi.org/10.1016/j.physleta.2011.09.053

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