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- W2087286063 endingPage "013" @default.
- W2087286063 startingPage "013" @default.
- W2087286063 abstract "We elaborate on a recently discovered phenomenon where a scalar field close to big-bang is forced to climb a steep potential by its dynamics. We analyze the phenomenon in more general terms by writing the leading order equations of motion near the singularity. We formulate the conditions for climbing to exist in the case of several scalars and after inclusion of higher-derivative corrections and we apply our results to some models of moduli stabilization. We analyze an example with steep stabilizing potential and notice again a related critical behavior: for a potential steepness above a critical value, going backwards towards big-bang, the scalar undergoes wilder oscillations, with the steep potential pushing it back at every passage and not allowing the scalar to escape to infinity. Whereas it was pointed out earlier that there are possible implications of the climbing phase to CMB, we point out here another potential application, to the issue of initial conditions in inflation." @default.
- W2087286063 created "2016-06-24" @default.
- W2087286063 creator A5063892019 @default.
- W2087286063 creator A5091322819 @default.
- W2087286063 date "2013-08-08" @default.
- W2087286063 modified "2023-10-02" @default.
- W2087286063 title "Kasner solutions, climbing scalars and big-bang singularity" @default.
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- W2087286063 doi "https://doi.org/10.1088/1475-7516/2013/08/013" @default.
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