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dc.contributor.author
Wang, Ziwei
dc.contributor.author
Brandenberger, Robert
dc.contributor.author
Heisenberg, Lavinia
dc.date.accessioned
2020-10-13T09:26:13Z
dc.date.available
2020-09-29T03:35:16Z
dc.date.available
2020-09-29T13:06:05Z
dc.date.available
2020-10-13T08:55:25Z
dc.date.available
2020-10-13T09:26:13Z
dc.date.issued
2020-09-19
dc.identifier.issn
1434-6044
dc.identifier.issn
1434-6052
dc.identifier.other
10.1140/epjc/s10052-020-8412-x
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/443290
dc.identifier.doi
10.3929/ethz-b-000443290
dc.description.abstract
It has been suggested that low energy effective field theories should satisfy given conditions in order to be successfully embedded into string theory. In the case of a single canonically normalized scalar field this translates into conditions on its potential and the derivatives thereof. In this Letter we revisit small field hilltop models of eternal inflation including stochastic effects and study the compatibility of the swampland constraints with entropy considerations. We show that these stochastic inflation scenarios either violate entropy bounds or the swampland criterion on the slope of the scalar field potential. Furthermore, we illustrate that such models are faced with a graceful exit problem: any patch of space which exits the region of eternal inflation is either not large enough to explain the isotropy of the cosmic microwave background, or has a spectrum of fluctuations with an unacceptably large red tilt.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Eternal inflation, entropy bounds and the swampland
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
The European Physical Journal C
ethz.journal.volume
80
en_US
ethz.journal.issue
9
en_US
ethz.journal.abbreviated
Eur. Phys. J. C
ethz.pages.start
864
en_US
ethz.size
9 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Modified Gravity on Trial
en_US
ethz.grant
Multimessenger constraints of modified gravity
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Heidelberg
en_US
ethz.publication.status
published
en_US
ethz.grant.agreementno
801781
ethz.grant.agreementno
179740
ethz.grant.fundername
EC
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
H2020
ethz.grant.program
PRIMA
ethz.date.deposited
2020-09-29T03:35:22Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-09-29T13:06:17Z
ethz.rosetta.lastUpdated
2020-09-29T13:06:17Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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