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Infrared divergences and confinement in massive (2+1)-dimensional QED

Sen , Diptiman (1990) Infrared divergences and confinement in massive (2+1)-dimensional QED. In: Physical Review D – Particles and Fields, 41 (4). pp. 1227-1230.

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Official URL: http://prd.aps.org/abstract/PRD/v41/i4/p1227_1


In (2+1)-dimensional quantum electrodynamics with massless photons and massive matter fields, it is shown that the mass renormalization of the latter is infrared divergent at one loop. This result remains unchanged at two loops. A simple argument based on a similar divergence of the Coulomb potential leads us to conjecture that charged states are not observable in this model. This argument holds in 1+1 dimensions also.

Item Type: Journal Article
Publication: Physical Review D – Particles and Fields
Publisher: The American Physical Society
Additional Information: Copyright of this article belongs to The American Physical Society.
Department/Centre: Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited: 27 Apr 2011 04:30
Last Modified: 27 Apr 2011 04:30
URI: http://eprints.iisc.ac.in/id/eprint/35057

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