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Continuum QCD2 from a fixed-point lattice action

✍ Scribed by Paolo Rossi

Publisher: Elsevier Science
Year: 1981
Tongue: English
Weight: 818 KB
Volume: 132
Category: Article
ISSN: 0003-4916
DOI: 10.1016/0003-4916(81)90075-0

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✦ Synopsis

Gauge invariant expectation values for lattice gauge theory with a general local action in two dimensions may be expressed as functions of the single plaquette averages. The value of these averages at the fixed point of the renormalization group can be determined exactly, and the corresponding lattice theory is shown to reproduce the continuum results. The limit N, = 00 is investigated in detail, and fixed point values for all the averages are explicitly determined. Wilson's action results agree only to first order in weak coupling.

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## ABSTRACTS OF PAPERS TO APPEAR IN FUTURE ISSUES arguments. This is shown to agree with the correct equations first found by Cooperstock when the harmonic gauge condition is imposed. The result is compared with other incorrect forms in the literature. A Well-Defined Transition from Continuum to