Predictions of just-enough inflation

Ramirez E, Schwarz D (2012)
Physical Review D 85(10).

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
We find the best-fit cosmological parameters for a scenario of inflation withonly the sufficient amount of accelerated expansion for the $\lambda\phi^4$potential. While for the simplest scenario of chaotic inflation all observableprimordial fluctuations cross the Hubble horizon during the slow-roll epoch,for the scenario of just-enough inflation the slow-roll conditions are violatedat the largest length scales. Performing a numerical mode-by-mode integrationfor the perturbations on the largest scales and comparing the predictedanisotropies of the cosmic microwave background to results from the WMAP 7yrdata analysis, we find the initial conditions in agreement with currentcosmological data. In contrast to the simplest chaotic model for the quarticpotential, the just-enough inflation scenario is not ruled out. Although thisscenario naturally gives rise to a modification of the first multipoles, for aquartic potential it cannot explain the lack of power at the largest angularscales.
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Zeitschriftentitel
Physical Review D
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85
Zeitschriftennummer
10
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Ramirez E, Schwarz D. Predictions of just-enough inflation. Physical Review D. 2012;85(10).
Ramirez, E., & Schwarz, D. (2012). Predictions of just-enough inflation. Physical Review D, 85(10). doi:10.1103/PhysRevD.85.103516
Ramirez, E., and Schwarz, D. (2012). Predictions of just-enough inflation. Physical Review D 85.
Ramirez, E., & Schwarz, D., 2012. Predictions of just-enough inflation. Physical Review D, 85(10).
E. Ramirez and D. Schwarz, “Predictions of just-enough inflation”, Physical Review D, vol. 85, 2012.
Ramirez, E., Schwarz, D.: Predictions of just-enough inflation. Physical Review D. 85, (2012).
Ramirez, Erandy, and Schwarz, Dominik. “Predictions of just-enough inflation”. Physical Review D 85.10 (2012).

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arXiv: 1111.7131

Inspire: 1079404

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