A Criterion for the Critical Number of Fermions and Chiral Symmetry Breaking in Anisotropic QED(2+1)
arXiv:0906.1103 · doi:10.1103/PhysRevB.79.214525
Abstract
By analyzing the strength of a photon-fermion coupling using basic scattering processes we calculate the effect of a velocity anisotropy on the critical number of fermions at which mass is dynamically generated in planar QED. This gives a quantitative criterion which can be used to locate a quantum critical point at which fermions are gapped and confined out of the physical spectrum in a phase diagram of various condensed matter systems. We also discuss the mechanism of relativity restoration within the symmetric, quantum-critical phase of the theory.
To appear in Physical Review B
References in corpus (7)
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- Algebraic charge liquids
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Cited by in corpus (7)
- Magnetic monopole plasma phase in (2+1)d compact quantum electrodynamics with fermionic matter
- Chiral symmetry breaking and monopole dynamics in non-compact QED3 coupled to a four-fermi interaction
- Dyson-Schwinger approach to strongly coupled theories
- Effects of Anisotropy in QED3 from Dyson-Schwinger equations in a box
- Critical scaling of finite temperature QED_3 in anisotropic space-time
- Effects of Anisotropy in (2+1)-dimensional QED
- Influence of Fermion Velocity Renormalization on Dynamical Mass Generation in QED