The free energies and the static spin correlation functions for the 2π- and π-sine-Gordon systems are calculated from a functional integration approach. The free energies for these systems are rather similar but the soliton contributions to the static two-spin correlation functions can be drastically different. The reasons for these behaviors are discussed, and the nature of the T = 0 phase transitions for the π system is briefly analyzed.
|Original language||English (US)|
|Number of pages||3|
|Journal||Journal of Applied Physics|
|State||Published - 1982|
ASJC Scopus subject areas
- Physics and Astronomy(all)