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Fluid phonons, protoinflationary dynamics and large-scale gravitational fluctuations
We explore what can be said on the effective temperature and sound speed of a statistical ensemble of fluid phonons present at the onset of a conventional inflationary phase. The phonons are the actual normal modes of the gravitating and irrotational fluid that dominates the protoinflationary dynami...
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| Lenguaje: | eng |
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2013
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.88.021301 http://cds.cern.ch/record/1542601 |