Cargando…
The MESS of cosmological perturbations
We introduce two new effective quantities for the study of comoving curvature perturbations ζ : the space dependent effective sound speed (SESS) and the momentum dependent effective sound speed (MESS). We use the SESS and the MESS to derive a new set of equations which can be applied to any system d...
| Autores principales: | , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2018
|
| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2018.08.016 http://cds.cern.ch/record/2635027 |