Gutenberg Open Science: De Sitter scattering amplitudes in the Born approximation

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-8853

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DC Field	Value	Language
dc.contributor.author	Ferrero, Renata	-
dc.contributor.author	Ripken, Chris	-
dc.date.accessioned	2023-06-20T13:13:06Z	-
dc.date.available	2023-06-20T13:13:06Z	-
dc.date.issued	2022	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/8869	-
dc.description.abstract	We present a covariant framework to compute scattering amplitudes and potentials in a de Sitter background. In this setting, we compute the potential of a graviton-mediated scattering process involving two very massive scalars at tree level. Although the obtained scattering potential reproduces the Newtonian potential at short distances, on Hubble- size length scales it is affected by the constant curvature: effectively, it yields a repulsive force at sub-Hubble distances. This can be attributed to the expansion of the de Sitter universe. Beyond the de Sitter horizon, the potential vanishes identically. Hence, the scattering amplitude unveils the geometric properties of de Sitter spacetime in a novel and nontrivial way.	en_GB
dc.language.iso	eng	de
dc.rights	CC BY	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	*
dc.subject.ddc	530 Physik	de_DE
dc.subject.ddc	530 Physics	en_GB
dc.title	De Sitter scattering amplitudes in the Born approximation	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-8853	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 08 Physik, Mathematik u. Informatik	de
jgu.organisation.number	7940	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	SciPost physics	de
jgu.journal.volume	13	de
jgu.journal.issue	5	de
jgu.pages.alternative	106	de
jgu.publisher.year	2022	-
jgu.publisher.name	SciPost Foundation	de
jgu.publisher.place	Amsterdam	de
jgu.publisher.issn	2542-4653	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	530	de
jgu.publisher.doi	10.21468/SciPostPhys.13.5.106	de
jgu.organisation.ror	https://ror.org/023b0x485	-
jgu.subject.dfg	Naturwissenschaften	de
Appears in collections:	DFG-491381577-D

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