Publication:
Treatments and placebos for the pathologies of effective field theories

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dc.contributor.authorid0000-0003-3075-1457
dc.contributor.authorid0000-0001-8856-3067
dc.contributor.departmentDepartment of Physics
dc.contributor.kuauthorRamazanoğlu, Fethi Mübin
dc.contributor.kuprofileFaculty Member
dc.contributor.kuprofileResearcher
dc.contributor.yokid254225
dc.contributor.yokidN/A
dc.date.accessioned2025-01-19T10:33:57Z
dc.date.issued2023
dc.description.abstractWe demonstrate some shortcomings of "fixing the equations,"an increasingly popular remedy for time evolution problems of effective field theories (EFTs). We compare the EFTs and their "fixed"versions to the UV theories from which they can be derived in two cases: K-essence and nonlinear Proca theory. We find that when an EFT breaks down due to loss of hyperbolicity, fixing does not approximate the UV theory well if the UV solution does not quickly settle down to vacuum. We argue that this can be related to the EFT approximation itself becoming invalid, which cannot be rectified by fixing. © 2023 American Physical Society.
dc.description.indexedbyWoS
dc.description.indexedbyScopus
dc.description.issue10
dc.description.openaccessAll Open Access; Green Open Access
dc.description.publisherscopeInternational
dc.description.sponsorsWe thank Will East for many valuable discussions and stimulating questions, and Marco Crisostomi for his comments on the manuscript. F. M. R. acknowledges support from The Scientific and Technological Research Council of Türkiye Project No. 122F097.
dc.description.volume108
dc.identifier.doi10.1103/PhysRevD.108.L101501
dc.identifier.eissn2470-0029
dc.identifier.issn24700010
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85177062823
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.108.L101501
dc.identifier.urihttps://hdl.handle.net/20.500.14288/26689
dc.identifier.wos1121860500018
dc.keywordsAstronomy
dc.keywordsAstrophysics
dc.keywordsPhysics
dc.keywordsParticles
dc.keywordsFields
dc.languageen
dc.publisherAmerican Physical Society
dc.relation.grantnoTürkiye Bilimsel ve Teknolojik Araştırma Kurumu, TÜBİTAK, (122F097)
dc.sourcePhysical Review D
dc.subjectPhysics
dc.titleTreatments and placebos for the pathologies of effective field theories
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorRamazanoğlu, Fethi Mübin
local.contributor.kuauthorAndrew, Coates
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Physics
relation.isOrgUnitOfPublicationc43d21f0-ae67-4f18-a338-bcaedd4b72a4
relation.isOrgUnitOfPublication.latestForDiscoveryc43d21f0-ae67-4f18-a338-bcaedd4b72a4

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