Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}

Concha, A; Stanev, V; Tesanovic, Z

doi:10.1103/PHYSREVB.79.214525

Title: Criterion for the critical number of fermions and chiral symmetry breaking in anisotropic QED{sub 3}

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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 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 condensed-matter systems. We also discuss the mechanism of relativity restoration within the symmetric quantum-critical phase of the theory.

Authors:

Concha, A; Stanev, V; Tesanovic, Z ^[1]

Department of Physics and Astronomy, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

Publication Date:: 2009-06-01

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 1098-0121

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.

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                    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

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                    Concha, A, Stanev, V, and Tesanovic, Z. 2009.  
        "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.

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@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 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 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 condensed-matter systems. We also discuss the mechanism of relativity restoration within the symmetric quantum-critical 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         = {1098-0121},

  number       = 21,

  volume       = 79,

  place        = {United States},

  year         = {2009},

  month        = {6}

}

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