Reheating-volume measure for random-walk inflation
| dc.creator | Winitzki, Sergei | |
| dc.date | 2008-05-26 | |
| dc.date | 2008-08-20 | |
| dc.date.accessioned | 2026-07-07T12:43:51Z | |
| dc.date.available | 2026-07-07T12:43:51Z | |
| dc.description | The recently proposed "reheating-volume" (RV) measure promises to solve the long-standing problem of extracting probabilistic predictions from cosmological "multiverse" scenarios involving eternal inflation. I give a detailed description of the new measure and its applications to generic models of eternal inflation of random-walk type. For those models I derive a general formula for RV-regulated probability distributions that is suitable for numerical computations. I show that the results of the RV cutoff in random-walk type models are always gauge-invariant and independent of the initial conditions at the beginning of inflation. In a toy model where equal-time cutoffs lead to the "youngness paradox," the RV cutoff yields unbiased results that are distinct from previously proposed measures. | |
| dc.description | Figure 1 updated, version accepted for publication in Phys.Rev.D | |
| dc.identifier | https://arxiv.org/abs/0805.3940 | |
| dc.identifier | http://arxiv.org/abs/0805.3940 | |
| dc.identifier | Phys.Rev.D78:063517,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.063517 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/220566 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Reheating-volume measure for random-walk inflation | |
| dc.type | text |