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arxiv: hep-ph/0511291 · v3 · submitted 2005-11-24 · ✦ hep-ph · cond-mat.other· hep-th

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Truncated Schwinger-Dyson Equations and Gauge Covariance in QED3

A. Bashir , A. Raya
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classification ✦ hep-ph cond-mat.otherhep-th
keywords gaugelkftmassqed3approximationcheckchiralcompared
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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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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Landau-Khalatnikov-Fradkin Transformations in Reduced Quantum Electrodynamics: Perturbative and Nonperturbative Dynamics of the Fermion Propagator

    hep-th 2026-05 unverdicted novelty 6.0

    LKF transformations give all-order gauge-transformed fermion propagators in RQED, with ξ=1/3 eliminating one-loop leading logs and numerical checks confirming gauge-invariant condensate and pole mass.