Massless fermions in multiflavor QED2

S. Nagy
Phys. Rev. D 79, 045004 – Published 4 February 2009

Abstract

The ground state of the multiflavor two-dimensional quantum electrodynamics is determined in the presence of finite baryon density, and it is shown that the model possesses two phases: the low-density phase where the external baryon density is totally screened, and the high-density phase where the screening is only partial. The renormalization of the bosonized version of the model is also performed for both the zero and the finite-density model giving massless multiflavor two-dimensional quantum electrodynamics in both cases.

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  • Received 14 May 2008

DOI:https://doi.org/10.1103/PhysRevD.79.045004

©2009 American Physical Society

Authors & Affiliations

S. Nagy

  • Department of Theoretical Physics, University of Debrecen, Debrecen, Hungary

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Issue

Vol. 79, Iss. 4 — 15 February 2009

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