Few-Body Systems

, Volume 41, Issue 3–4, pp 185–199 | Cite as

Truncated Schwinger-Dyson equations and gauge covariance in QED3

  • A. Bashir
  • A. Raya


We study the Landau-Khalatnikov-Fradkin transformations (LKFT) in momentum space for the dynamically generated mass function in QED3. Starting from the Landau gauge results in the rainbow approximation, we construct solutions in other covariant gauges. We confirm that the chiral condensate is gauge invariant as the structure of the LKFT predicts. We also check that the gauge dependence of the constituent fermion mass is considerably reduced as compared to the one obtained directly by solving SDE.


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • A. Bashir
    • 1
    • 2
    • 3
  • A. Raya
    • 1
    • 2
  1. 1.Instituto de Física y MatemáticasUniversidad Michoacana de San Nicolás de HidalgoMoreliaMéxico
  2. 2.Instituto de Ciencias NuclearesUniversidad Nacional Autónoma de México, Circuito ExteriorMéxico
  3. 3.IPPPDurham UniversityDurhamUK

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