| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7382505 | Physica A: Statistical Mechanics and its Applications | 2012 | 5 Pages |
Abstract
⺠We introduce a self-consistent perturbation theory in a condensate system. ⺠This method allows us to go beyond the Bogoliubov approximation without losing the gap-less character of the spectrum. ⺠The self-consistent approximation is also compatible with the existence of phase diffusion.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
Gian Luca Giorgi, Ferdinando de Pasquale,