Published February 15, 2008
| Version v1
Journal article
Renormalized effective actions in radially symmetric backgrounds: Exact calculations versus approximation methods
Creators
- 1. Department of Physics, University of Seoul, Seoul 130-743 (Korea, Republic of)
- 2. Department of Physics and Astronomy and Center for Theoretical Physics, Seoul National University, Seoul 151-742 (Korea, Republic of)
- 3. School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-012 (Korea, Republic of)
- 4. Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)
Description
Our previously developed calculational method (the partial-wave cutoff method) is employed to evaluate explicitly scalar one-loop effective actions in a class of radially symmetric background gauge fields. Our method proves to be particularly effective when it is used in conjunction with a systematic WKB series for the large partial-wave contribution to the effective action. By comparing these numerically exact calculations against the predictions based on the large-mass expansion and derivative expansion, we discuss the validity ranges of the latter approximation methods
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.77.045004;
- arXiv
- arXiv:0711.4877v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 77
- Journal Issue
- 4
- Journal Page Range
- p. 045004-045004.14
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39059168
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ACTION INTEGRAL; MASS; PARTIAL WAVES; QUANTUM FIELD THEORY; RENORMALIZATION; SCALARS; WKB APPROXIMATION
- Descriptors DEC
- APPROXIMATIONS; CALCULATION METHODS; FIELD THEORIES; INTEGRALS
Optional Information
- Notes
- (c) 2008 The American Physical Society