QED3 at Finite Temperature and Density

Abstract

Schwinger-Dyson equations are used to study the phase diagram of QED in three dimensions. This computation is made with full frequency-dependence in the two-point function gap equations for the first time. We also demonstrate that reliable results are attainable in spite of an infrared divergence that is endemic to the theory. A theoretically sound method for dealing with cutoff ultraviolet regulators is presented. Finally, it is shown that the quenched and instantaneous approximations often used in the literature are inaccurate.

12 pages, 8 figures

References in corpus (6)

• Unconventional Integer Quantum Hall effect in graphene
• The "Coulomb phase" in frustrated systems
• Parity Symmetry in QED3
• Chiral symmetry restoration in (2+1)-dimensional $QED$ with a Maxwell-Chern-Simons term at finite temperature
• Endemic Infrared Divergences in QED3 at Finite Temperature
• Effect of gauge boson mass on the phase structure of QED${}_3$

Cited by in corpus (5)

• Sensitivity of finite size effects to the boundary conditions and the vacuum term
• Infrared behavior of dynamical fermion mass generation in QED${}_3$
• Renormalization of fermion velocity in finite temperature QED_{3}
• Polarization effects at finite temperature and magnetic field
• Planar generalized electrodynamics for one-loop amplitude in the Heisenberg picture