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dc.contributor.authorBonifacio, James
dc.contributor.authorPajer, Enrico
dc.contributor.authorWang, Dong-Gang
dc.date.accessioned2022-01-28T16:45:46Z
dc.date.available2022-01-28T16:45:46Z
dc.date.issued2021-10-01
dc.date.submitted2021-07-07
dc.identifier.otherjhep10(2021)001
dc.identifier.other16795
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/333302
dc.description.abstractAbstract: Our understanding of quantum correlators in cosmological spacetimes, including those that we can observe in cosmological surveys, has improved qualitatively in the past few years. Now we know many constraints that these objects must satisfy as consequences of general physical principles, such as symmetries, unitarity and locality. Using this new understanding, we derive the most general scalar four-point correlator, i.e., the trispectrum, to all orders in derivatives for manifestly local contact interactions. To obtain this result we use techniques from commutative algebra to write down all possible scalar four-particle amplitudes without assuming invariance under Lorentz boosts. We then input these amplitudes into a contact reconstruction formula that generates a contact cosmological correlator in de Sitter spacetime from a contact scalar or graviton amplitude. We also show how the same procedure can be used to derive higher-point contact cosmological correlators. Our results further extend the reach of the boostless cosmological bootstrap and build a new connection between flat and curved spacetime physics.
dc.languageen
dc.publisherSpringer Berlin Heidelberg
dc.subjectRegular Article - Theoretical Physics
dc.subjectCosmology of Theories beyond the SM
dc.subjectEffective Field Theories
dc.titleFrom amplitudes to contact cosmological correlators
dc.typeArticle
dc.date.updated2022-01-28T16:45:45Z
prism.issueIdentifier10
prism.publicationNameJournal of High Energy Physics
prism.volume2021
dc.identifier.doi10.17863/CAM.80725
dcterms.dateAccepted2021-09-13
rioxxterms.versionofrecord10.1007/jhep10(2021)001
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidBonifacio, James [0000-0001-6633-7341]
dc.identifier.eissn1029-8479
dc.identifier.arxiv2106.15468


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