Masslessness of photon and Chern-Simons term in (2 + 1)-dimensional QED

Journal Article · Thu Dec 20 04:00:00 EST 1990 · Modern Physics Letters A; (United States)

DOI:https://doi.org/10.1142/S0217732390003103· OSTI ID:6003546

Kovner, A; Rosenstein, B ^[1]

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1. Physics Dept., Univ. of British Columbia, Vancouver, British Columbia V6T 2A6 (CA)

The authors study the realization of global symmetries in (2 + 1)-dimensional QED with two fermion flavors. The photon is identified with the corresponding massless excitation, which is required in this case by Goldstone theorem. An order parameter vanishes and chiral and flux symmetries are realized in the Kosterlitz-Thouless mode. Outside this range of parameters the vacuum is symmetric and simultaneously the photon's topological mass is generated. Similar symmetry breaking pattern U(1) {circle times} U(1) {yields} U(1) is realized in Chern-Simons electrodynamics for a particular value of the bare Cs-term coefficient at which the statistical photon becomes massless. The authors point out the direct correspondence of this model to the superconducting anyon gas.

• OSTI ID: 6003546
• Journal Information: Modern Physics Letters A; (United States), Journal Name: Modern Physics Letters A; (United States) Vol. 5:31; ISSN 0217-7323; ISSN MPLAE
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARMONIUM
CHIRAL SYMMETRY
COMPOSITE MODELS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
FIELD THEORIES
FLAVOR MODEL
HADRONS
LIE GROUPS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MESONS
ONE-DIMENSIONAL CALCULATIONS
PARTICLE MODELS
PHI J-1850 MESONS
PHOTONS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKONIUM
STRANGEONIUM
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
TENSOR MESONS
TWO-DIMENSIONAL CALCULATIONS
U GROUPS
U-1 GROUPS