Two-dimensional Yukawa interaction driven by a nonlocal-Proca quantum electrodynamics

Abstract

We derive two versions of an effective model to describe dynamical effects of the Yukawa interaction among Dirac electrons in the plane. Such short-range interaction is obtained by introducing a mass term for the intermediate particle, which may be either scalar or an abelian gauge field, both of them in (3+1) dimensions. Thereafter, we consider that the matter field propagates only in (2+1) dimensions, whereas the bosonic field is free to propagate out of the plane. Within these assumptions, we apply a mechanism for dimensional reduction, which yields an effective model in (2+1) dimensions. In particular, for the gauge-field case, we use the Stueckelberg mechanism in order to preserve gauge invariance. We refer to this version as nonlocal-Proca quantum electrodynamics (NPQED). For both scalar and gauge cases, the effective models reproduce the usual $e^{-mr}/r$ Yukawa interaction in the static limit. By means of perturbation theory at one loop, we calculate the mass renormalization of the Dirac field. Our model is a generalization of Pseudoquantum electrodynamics (PQED), which is a gauge-field model that provides a Coulomb interaction for two-dimensional electrons. Possibilities of application to Fermi-Bose mixtures in mixed dimensions, using cold atoms, are briefly discussed.

8 pages, 2 figures

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Cited by in corpus (12)

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• String tension and robustness of confinement properties of in the Schwinger-Thirring model
• Bounded particle interactions driven by a nonlocal dual Chern-Simons model
• Effects of the Pseudo-Chern-Simons action for strongly correlated electrons in the plane
• Bosonization, mass generation, and the pseudo Chern-Simons action
• Global $H^s,s>0$ Large Data Solutions of 2D Dirac Equation with Hartree Type Interaction
• Classical features, Anderson-Higgs mechanism, and unitarity in Lee-Wick pseudo-electrodynamics
• Bosonic interactions in a nonlocal theory in (2+1) dimensions
• Remarks on classical pseudo-electrodynamics
• Effective potential of scalar Lee-Wick pseudo-electrodynamics
• The Lee-Wick-Chern-Simons pseudo-quantum electrodynamics
• The influence of a conducting surface on the conductivity of graphene