Noncompact pure gauge QED in 3-D is free

Mar, 1995
11 pages
Published in:
  • Phys.Lett.B 357 (1995) 225-231
e-Print:
Report number:
  • SHEP-95-07

Citations per year

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Abstract:
For all Poincar\'e invariant Lagrangians of the form Lf(Fμν){\cal L}\equiv f(F_{\mu\nu}), in three Euclidean dimensions, where ff is any invariant function of a non-compact U(1)U(1) field strength FμνF_{\mu\nu}, we find that the only continuum limit is that of free field theory: First we approximate a gauge invariant version of Wilson's renormalization group by neglecting all higher derivative terms  nF\sim \partial~nF in L{\cal L}, but allowing for a general non-vanishing anomalous dimension. Then we prove analytically that the resulting flow equation has only one acceptable fixed point: the Gaussian fixed point. The possible relevance to high-TcT_c superconductivity is briefly discussed.
Note:
  • Plain tex, uses harvmac. Report-no: SHEP 95-07
  • quantum electrodynamics: noncompact
  • field theory: Euclidean
  • dimension: 3
  • path integral
  • field theory: action
  • renormalization group
  • scaling: violation
  • invariance: Becchi-Rouet-Stora