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The momentum-dependent effective sound speed and multi-field inflation
For any physical system satisfying the Einstein's equations the comoving curvature perturbations satisfy an equation involving the momentum-dependent effective sound speed (MESS), valid for any system with a well defined energy-stress tensor (EST), including multi-fields models of inflation. Wh...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2722383 |