VALIDITY OF THE LOW COUPLING APPROXIMATION IN THE EFFECTIVE-POTENTIALMONTE-CARLO THEORY

Citation
D. Acocella et al., VALIDITY OF THE LOW COUPLING APPROXIMATION IN THE EFFECTIVE-POTENTIALMONTE-CARLO THEORY, Physics letters. A, 212(3), 1996, pp. 161-166
Citations number
13
Categorie Soggetti
Physics
Journal title
ISSN journal
03759601
Volume
212
Issue
3
Year of publication
1996
Pages
161 - 166
Database
ISI
SICI code
0375-9601(1996)212:3<161:VOTLCA>2.0.ZU;2-T
Abstract
Recent fundamental advances in formulating a reliable all-temperature lattice dynamics contain an uncontrolled approximation - the low-coupl ing approximation - routinely used in implementing the effective-poten tial Monte Carlo theory. We find that this approximation is most relia ble when used in conjunction with the improved effective-potential Mon te Carlo theory.