Generalization of the Migdal's recursion relation |
| |
| Authors: | G. Forgács A. Zawadowski |
| |
| Affiliation: | 1. Solid State Theory Department, Central Research Institute for Physics, P.O.Box 49, H-1525, Budapest, Hungary
|
| |
| Abstract: | A systematic approximative scheme for the solution of the Migdal's recursion formula for continuous spin systems is worked out. The new method avoids a number of problems present in the original solution given by Migdal. The critical behaviour of the two dimensional harmonic rotator model (n=2, wheren is the number of spin components) is calculated as an illustration of the method. Finally, a model for which the approximative scheme becomes exact is discussed. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
