SCOAP3 Repository 5 records found  Search took 0.02 seconds. 
1. Backreaction of super-Hubble cosmological perturbations beyond perturbation theory / Brandenberger, Robert ; Graef, Leila L. ; Marozzi, Giovanni ; Vacca, Gian Paolo
We discuss the effect of super-Hubble cosmological fluctuations on the locally measured Hubble expansion rate. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.103523 arXiv:1807.07494
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2. A note on trans-Planckian tail effects / Graef, L.L. ; Brandenberger, R.
We study the proposal by Mersini et al. [...]
Published in JCAP 1509 (2015) 032 10.1088/1475-7516/2015/09/032 arXiv:1505.02374
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3. Particle production in Ekpyrotic scenarios / Hipólito-Ricaldi, W.S. ; Brandenberger, Robert ; Ferreira, Elisa G.M. ; Graef, L.L.
We consider Parker particle production in the Ekpyrotic scenario (in particular in the New Ekpyrotic model) and show that the density of particles produced by the end of the phase of Ekpyrotic contraction can be sufficient to lead to a hot state of matter after the bounce. [...]
Published in JCAP 1611 (2016) 024 10.1088/1475-7516/2016/11/024 arXiv:1605.04670
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4. A note on trans-Planckian tail effects / Graef, L.L. ; Brandenberger, R.
We study the proposal by Mersini et al. [...]
Published in JCAP 1509 (2015) 032 10.1088/1475-7516/2015/9/032 arXiv:1505.02374
5. On the equivalence of Λ(t) and gravitationally induced particle production cosmologies / Graef, L.L. ; Costa, F.E.M. ; Lima, J.A.S.
The correspondence between cosmological models powered by a decaying vacuum energy density and gravitationally induced particle production is investigated. [...]
Published in Physics letters B 728 (2014) 400-406 10.1016/j.physletb.2013.12.027
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1 Graef, Leila L.
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