Langevin methods for spin systems
โ Scribed by I.T. Drummond; R.R. Horgan
- Book ID
- 113392384
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 268 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0920-5632
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
We develop an approach which leads to an analytically treatable integral representation for the steady state correlation functions of some Langevin dynamical systems, which are related to the microscopic Hamiltonian description of the heat mechanism. For the simpler case of harmonic interactions (wh
The partition function of quantum spin systems is represented by a functional integral over "time"-dependent magnetic fields. It is evaluated in the saddle-point approximation. In this way, the excitations of the system are derived from first principles, and their interactions are obtained. ## 1. I