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Phase-space noncommutativity and the Dirac equation

Title
Phase-space noncommutativity and the Dirac equation
Type
Article in International Scientific Journal
Year
2011
Authors
Orfeu Bertolami
(Author)
FCUP
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Raquel Queiroz
(Author)
Other
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Journal
Title: Physics Letters AImported from Authenticus Search for Journal Publications
Vol. 375
Pages: 4116-4119
ISSN: 0375-9601
Publisher: Elsevier
Scientific classification
FOS: Natural sciences > Physical sciences
Other information
Authenticus ID: P-002-JPE
Abstract (EN): 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, root eta less than or similar to 2.26 mu eV/c.
Language: English
Type (Professor's evaluation): Scientific
Contact: orfeu.bertolami@fc.up.pt; rpa.queiroz@gmail.com
No. of pages: 4
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