On the initial conditions for inflation with plateau potentials: the R plus R-2 (super)gravity case

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00081049" target="_blank" >RIV/00216224:14310/15:00081049 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1475-7516/2015/07/044/meta" target="_blank" >http://iopscience.iop.org/article/10.1088/1475-7516/2015/07/044/meta</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
On the initial conditions for inflation with plateau potentials: the R plus R-2 (super)gravity case
Original language description
We discuss the initial conditions problem for inflation driven by the vacuum energy of a plateau potential, and in particular the Starobinsky inflation. We show that the supergravity embedding of the R+R2 theory naturally decreases the size of the acausal homogeneity, required for the low-scale inflation to occur, thanks to the presence of the dynamical pure supergravitational ``auxiliary'' fields. We examine the evolution of the R+R2 fields within a FLRW Universe. We also find a dependence of the initial conditions problem on the background spatial curvature.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Project
<a href="/en/project/GBP201%2F12%2FG028" target="_blank" >GBP201/12/G028: Eduard Čech Institute for algebra, geometry and mathematical physics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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