(2+1)-dimensional QED with a Chern-Simons term in the ladder approximation

Journal Article · Sat Oct 15 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.50.5398· OSTI ID:6962928

Kye, W; Kim, J K ^[1]

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1. Department of Physics, Korea Advanced Institute of Science and Technology, 373-1, Kusung-dong, Yusung-ku, Taejon (Korea, Republic of)

We study dynamical chiral symmetry breaking in (2+1)-dimensional QED with a Chern-Simons term. It is observed that the Chern-Simons term improves the infrared behavior of the photon propagator and enables one to investigate chiral symmetry breaking by the ladder Dyson-Schwinger equation without the infrared divergence problem. The model shows the dynamical mass generation only when [alpha][prime][gt]1/2 and the dynamically generated mass is linearly proportional to the coupling [alpha][prime]. We also determine the dynamically generated mass at finite temperature and the critical temperature above which chiral symmetry is restored. The critical line which separates the two phases U(2) and [direct product]U(1) is presented on the ([alpha][prime],[ital T][prime]) plane.

• OSTI ID: 6962928
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 50:8; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

662110 -- General Theory of Particles & Fields-- Theory of Fields & Strings-- (1992-)
662220* -- Quantum Electrodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
CRITICAL TEMPERATURE
ELECTRODYNAMICS
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
INFRARED DIVERGENCES
INTEGRAL EQUATIONS
LADDER APPROXIMATION
LIPPMANN-SCHWINGER EQUATION
MASS
MASSLESS PARTICLES
PHOTONS
PHYSICAL PROPERTIES
PROPAGATOR
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
SYMMETRY
SYMMETRY BREAKING
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
THREE-DIMENSIONAL CALCULATIONS
TRANSITION TEMPERATURE