| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 978356 | Physica A: Statistical Mechanics and its Applications | 2007 | 5 Pages |
Abstract
In this paper we study quantum-phase transition in the one-dimensional XY model with an XY easy-plane single ion anisotropy. We use the path-integral formalism, but consider the effect of quantum fluctuations, which renormalize the parameters of the system, using the self-consistent harmonic approximation. We show that the quantum fluctuations increase the effective coupling constant of the model.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
A.S.T. Pires,