Journal article
(Original article)


No-boundary measure and preference for large e-foldings in multi-field inflation


Publication Details
Author(s): Hwang Di, Kim SA, Lee BH, Sahlmann H, Yeom Dh
Publisher: Institute of Physics: Hybrid Open Access
Publication year: 2013
Volume: 30
Journal issue: 16
ISSN: 0264-9381

Abstract

The no-boundary wavefunction of quantum gravity usually assigns only very small probability to long periods of inflation. This was a reason to doubt about the no-boundary wavefunction to explain the observational universe. We study the no-boundary proposal in the context of multi-field inflation to see whether the number of fields changes the situation. For a simple model, we find that indeed the no-boundary wavefunction can give higher probability for sufficient inflation, but the number of fields involved N has to be very high, e.g., N ≃ m. © 2013 IOP Publishing Ltd.



How to cite
APA: Hwang, D.-i., Kim, S.A., Lee, B.-H., Sahlmann, H., & Yeom, D.-h. (2013). No-boundary measure and preference for large e-foldings in multi-field inflation. Classical and Quantum Gravity, 30(16). https://dx.doi.org/10.1088/0264-9381/30/16/165016

MLA: Hwang, Dong-il, et al. "No-boundary measure and preference for large e-foldings in multi-field inflation." Classical and Quantum Gravity 30.16 (2013).

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