Non-trivial Infrared Structure in (2+1)-dimensional Quantum Electrodynamics

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dc.creatorAitchison, I. J. R.
dc.creatorAmelino-Camelia, G.
dc.creatorKlein-Kreisler, M.
dc.creatorMavromatos, N. E.
dc.creatorNeill, D. Mc
dc.date1996-07-25
dc.date.accessioned2026-07-07T12:03:51Z
dc.date.available2026-07-07T12:03:51Z
dc.descriptionWe show that the gauge-fermion interaction in multiflavour $(2+1)$-dimensional quantum electrodynamics with a finite infrared cut-off is responsible for non-fermi liquid behaviour in the infrared, in the sense of leading to the existence of a non-trivial fixed point at zero momentum, as well as to a significant slowing down of the running of the coupling at intermediate scales as compared with previous analyses on the subject. Both these features constitute deviations from fermi-liquid theory. Our discussion is based on the leading- $1/N$ resummed solution for the wave-function renormalization of the Schwinger-Dyson equations . The present work completes and confirms the expectations of an earlier work by two of the authors (I.J.R.A. and N.E.M.) on the non-trivial infrared structure of the theory.
dc.description10 pages (LaTex), 5 figures (Postscript)
dc.identifierhttps://arxiv.org/abs/hep-th/9607192
dc.identifierhttp://arxiv.org/abs/hep-th/9607192
dc.identifierPhys.Rev.B56:2836-2842,1997
dc.identifierdoi:10.1103/PhysRevB.56.2836
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207932
dc.subjectHigh Energy Physics - Theory
dc.subjectCondensed Matter
dc.titleNon-trivial Infrared Structure in (2+1)-dimensional Quantum Electrodynamics
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