Tunneling in Stochastic Inflation

Noorbala, Mahdiyar; Vennin, Vincent; Assadullahi, Hooshyar; Firouzjahi, Hassan; Wands, David

doi:10.1088/1475-7516/2018/09/032

Tunneling in Stochastic Inflation

Mahdiyar Noorbala
(
- Tehran U. and
- IPM, Tehran
)
,
Vincent Vennin
(
- APC, Paris and
- Portsmouth U., ICG
)
,
Hooshyar Assadullahi
(
- Portsmouth U., ICG
)
,
Hassan Firouzjahi
(
- IPM, Tehran
)
,
David Wands
(
- Portsmouth U., ICG
)

Jun 25, 2018

25 pages

Published in:

JCAP 09 (2018) 032

Published: Sep 21, 2018

e-Print:

1806.09634 [hep-th]

DOI:

10.1088/1475-7516/2018/09/032 (publication)

View in:

pdf

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Abstract: (arXiv)

The relative probability to decay towards different vacua during inflation is studied. The calculation is performed in single-field slow-roll potentials using the stochastic inflation formalism. Various situations are investigated, including falling from a local maximum of the potential and escaping from a local minimum. In the latter case, our result is consistent with that of Hawking and Moss, but is applicable to any potential. The decay rates are also computed, and the case of a generic potential with multiple minima and maxima is discussed.

Note:

24 pages, 4 figures; matches the published version (references updated)

physics of the early universe
inflation
inflation: stochastic
slow-roll approximation
vacuum state
decay rate
tunneling

References(92)

Figures(9)

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