Published April 1998
| Version v1
Journal article
Improved actions for the two-dimensional σ-model
- 1. Istituto Nazionale di Fisica Nucleare, Pisa (Italy)
- 2. Scuola Normale Superiore, Pisa (Italy)
- 3. Dipartimento di Fisica and INFN, Universita degli Studi di Pisa, 56100 Pisa (Italy)
Description
For the O(N) σ-model we studied the improvement program for actions with two- and four-spin interactions. An interesting example is an action which is reflection-positive, on-shell improved, and has all the coupling defined on an elementary plaquette. We show the large N solution and preliminary Monte Carlo results for N=3. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Physics. B, Proceedings Supplements
- Journal Volume
- 63
- Journal Page Range
- p. 916-918.
- ISSN
- 0920-5632
- CODEN
- NPBSE7
Conference
- Title
- 15. international symposium on lattice field theory (Lattice-15).
- Dates
- 22-26 Jul 1997.
- Place
- Edinburgh (United Kingdom).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 29025330
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CORRECTIONS; LATTICE FIELD THEORY; MONTE CARLO METHOD; O GROUPS; REST MASS; SIGMA MODEL; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- BOSON-EXCHANGE MODELS; CALCULATION METHODS; CONSTRUCTIVE FIELD THEORY; DYNAMICAL GROUPS; FIELD THEORIES; LIE GROUPS; MASS; MATHEMATICAL MODELS; PARTICLE MODELS; PERIPHERAL MODELS; QUANTUM FIELD THEORY; SYMMETRY GROUPS
Optional Information
- Notes
- 9 refs.