Stochastic inflation and replica field theory

Kuehnel F, Schwarz D (2009)
PHYSICAL REVIEW D 79(4): 044009.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Kuehnel, Florian; Schwarz, DominikUniBi
Abstract / Bemerkung
We adopt methods from statistical field theory to stochastic inflation. For the example of a free test field in de Sitter and power-law inflation, the power spectrum of long-wavelength fluctuations is computed. We study its dependence on the shape of the filter that separates long- from short-wavelength modes. While for filters with infinite support the phenomenon of dimensional reductions is found on large superhorizon scales, filters with compact support return a scale-invariant power spectrum in the infrared. Features of the power spectrum, induced by the filter, decay within a few e-foldings. Thus the late-time power spectrum is independent of the filter details.
Erscheinungsjahr
2009
Zeitschriftentitel
PHYSICAL REVIEW D
Band
79
Ausgabe
4
Art.-Nr.
044009
ISSN
1550-7998
eISSN
1550-2368
Page URI
https://pub.uni-bielefeld.de/record/1635369

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Kuehnel F, Schwarz D. Stochastic inflation and replica field theory. PHYSICAL REVIEW D. 2009;79(4): 044009.
Kuehnel, F., & Schwarz, D. (2009). Stochastic inflation and replica field theory. PHYSICAL REVIEW D, 79(4), 044009. doi:10.1103/PhysRevD.79.044009
Kuehnel, F., and Schwarz, D. (2009). Stochastic inflation and replica field theory. PHYSICAL REVIEW D 79:044009.
Kuehnel, F., & Schwarz, D., 2009. Stochastic inflation and replica field theory. PHYSICAL REVIEW D, 79(4): 044009.
F. Kuehnel and D. Schwarz, “Stochastic inflation and replica field theory”, PHYSICAL REVIEW D, vol. 79, 2009, : 044009.
Kuehnel, F., Schwarz, D.: Stochastic inflation and replica field theory. PHYSICAL REVIEW D. 79, : 044009 (2009).
Kuehnel, Florian, and Schwarz, Dominik. “Stochastic inflation and replica field theory”. PHYSICAL REVIEW D 79.4 (2009): 044009.

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arXiv: 0810.5686

Inspire: 801239

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