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arXiv · 1203.4068

Influence of Fermion Velocity Renormalization on Dynamical Mass Generation in QED$_3$

Hao-Ran Chang·Jing-Rong Wang·Jing Wang
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Abstract

We study dynamical fermion mass generation in (2+1)-dimensional quantum electrodynamics with a gauge field coupling to massless Dirac fermions and non-relativistic scalar bosons. We calculate the fermion velocity renormalization and then examine its influence on dynamical mass generation by using the Dyson-Schwinger equation. It is found that dynamical mass generation takes place even after including the scalar bosons as long as the bosonic compressibility parameter $ξ$ is sufficiently small. In addition, the fermion velocity renormalization enhances the dynamically generated mass.

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Hao-Ran Chang, Jing-Rong Wang, Jing Wang. 2012-07-25. Influence of Fermion Velocity Renormalization on Dynamical Mass Generation in QED$_3$. https://doi.org/10.1088/0256-307x%2F29%2F5%2F057401

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