Improving the Improved Action

Journal Article · Fri May 04 00:00:00 EDT 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.181601· OSTI ID:20951326

Tomboulis, E T; Velytsky, A ^[1]

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1. Department of Physics and Astronomy, UCLA, Los Angeles, California 90095-1547 (United States)

We investigate the construction of improved actions by the Monte Carlo renormalization group method in the context of SU(2) gauge theory utilizing different decimation procedures and effective actions. We demonstrate that the basic self-consistency requirement for correct application of the Monte Carlo renormalization group, i.e., that the decimated configurations are equilibrium configurations of the adopted form of the effective action, can be achieved only by careful fine-tuning of the choice of decimation prescription and/or action.

• OSTI ID: 20951326
• Journal Information: Physical Review Letters, Vol. 98, Issue 18; Other Information: DOI: 10.1103/PhysRevLett.98.181601; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACTION INTEGRAL
GAUGE INVARIANCE
MONTE CARLO METHOD
RENORMALIZATION
SU-2 GROUPS