Chin. Phys. Lett.  2012, Vol. 29 Issue (5): 057401    DOI: 10.1088/0256-307X/29/5/057401
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Influence of Fermion Velocity Renormalization on Dynamical Mass Generation in QED3
CHANG Hao-Ran**,WANG Jing-Rong,WANG Jing
Department of Modern Physics, University of Science and Technology of China, Hefei 230026
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CHANG Hao-Ran**, WANG Jing-Rong, WANG Jing 2012 Chin. Phys. Lett. 29 057401
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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.
Keywords: 74.72.-h      11.30.Rd      11.30.Qc      11.15.Pg     
Received: 08 January 2012      Published: 30 April 2012
PACS:  74.72.-h (Cuprate superconductors)  
  11.30.Rd (Chiral symmetries)  
  11.30.Qc (Spontaneous and radiative symmetry breaking)  
  11.15.Pg (Expansions for large numbers of components)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/5/057401       OR      https://cpl.iphy.ac.cn/Y2012/V29/I5/057401
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CHANG Hao-Ran**
WANG Jing-Rong
WANG Jing
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