Tunnelling in Dante's Inferno

Kazuyuki Furuuchi, Marcus Sperling

Research output: Contribution to journalArticle

Abstract

We study quantum tunnelling in Dante's Inferno model of large field inflation. Such a tunnelling process, which will terminate inflation, becomes problematic if the tunnelling rate is rapid compared to the Hubble time scale at the time of inflation. Consequently, we constrain the parameter space of Dante's Inferno model by demanding a suppressed tunnelling rate during inflation. The constraints are derived and explicit numerical bounds are provided for representative examples. Our considerations are at the level of an effective field theory; hence, the presented constraints have to hold regardless of any UV completion.

Original languageEnglish
Article number055
JournalJournal of Cosmology and Astroparticle Physics
Volume2017
Issue number5
DOIs
Publication statusPublished - 30-05-2017

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

Cite this

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Tunnelling in Dante's Inferno. / Furuuchi, Kazuyuki; Sperling, Marcus.

In: Journal of Cosmology and Astroparticle Physics, Vol. 2017, No. 5, 055, 30.05.2017.

Research output: Contribution to journalArticle

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AB - We study quantum tunnelling in Dante's Inferno model of large field inflation. Such a tunnelling process, which will terminate inflation, becomes problematic if the tunnelling rate is rapid compared to the Hubble time scale at the time of inflation. Consequently, we constrain the parameter space of Dante's Inferno model by demanding a suppressed tunnelling rate during inflation. The constraints are derived and explicit numerical bounds are provided for representative examples. Our considerations are at the level of an effective field theory; hence, the presented constraints have to hold regardless of any UV completion.

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