| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8197186 | Physics Letters B | 2007 | 8 Pages |
Abstract
The large-scale dynamics of a two-fluid system with a time dependent interaction is studied analytically and numerically. We show how a rapid transition can significantly suppress the large-scale curvature perturbation and present approximative formulae for estimating the effect. By comparing to numerical results, we study the applicability of the approximation and find good agreement with exact calculations.
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Authors
T. Multamäki, J. Sainio, I. Vilja,