Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}
Abstract
By analyzing the strength of a photonfermion 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 quantum electrodynamics. 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 condensedmatter systems. We also discuss the mechanism of relativity restoration within the symmetric quantumcritical phase of the theory.
 Authors:

 Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States)
 Publication Date:
 OSTI Identifier:
 21287027
 Resource Type:
 Journal Article
 Journal Name:
 Physical Review. B, Condensed Matter and Materials Physics
 Additional Journal Information:
 Journal Volume: 79; Journal Issue: 21; Other Information: DOI: 10.1103/PhysRevB.79.214525; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 10980121
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; CHIRAL SYMMETRY; COMPUTERIZED SIMULATION; CONDENSATES; COUPLING; FERMIONS; MASS; PHASE DIAGRAMS; PHOTONS; QUANTUM ELECTRODYNAMICS; QUANTUM FIELD THEORY; SCATTERING; SPECTRA; SYMMETRY BREAKING; VELOCITY
Citation Formats
Concha, A, Stanev, V, and Tesanovic, Z. Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}. United States: N. p., 2009.
Web. doi:10.1103/PHYSREVB.79.214525.
Concha, A, Stanev, V, & Tesanovic, Z. Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}. United States. https://doi.org/10.1103/PHYSREVB.79.214525
Concha, A, Stanev, V, and Tesanovic, Z. Mon .
"Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}". United States. https://doi.org/10.1103/PHYSREVB.79.214525.
@article{osti_21287027,
title = {Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}},
author = {Concha, A and Stanev, V and Tesanovic, Z},
abstractNote = {By analyzing the strength of a photonfermion 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 quantum electrodynamics. 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 condensedmatter systems. We also discuss the mechanism of relativity restoration within the symmetric quantumcritical phase of the theory.},
doi = {10.1103/PHYSREVB.79.214525},
url = {https://www.osti.gov/biblio/21287027},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {10980121},
number = 21,
volume = 79,
place = {United States},
year = {2009},
month = {6}
}
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