Polar modes and isospectrality of Ellis-Bronnikov wormholes

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dc.contributor.authorAzad, Bahareh
dc.contributor.authorBlázquez Salcedo, José Luis
dc.contributor.authorChew, Xiao Yan
dc.contributor.authorKunz, Jutta
dc.contributor.authorYeom, Dong-han
dc.date.accessioned2023-08-03T16:33:03Z
dc.date.available2023-08-03T16:33:03Z
dc.date.issued2023-04-13
dc.description© 2023 American Physical Society B. A., J. K., and J. L. B. S. would like to gratefully acknowledge support by DAAD, the DFG Research Training Group 1620 Models of Gravity, DFG Project No. Ku612/18-1, FCT Project No. PTDC/FIS-AST/3041/2020, and MICINN Project No. PID2021-125617NB-I00 “QuasiMode”. J. L. B. S. gratefully acknowledges support from Santander-UCM Project No. PR44/21-29910. X. Y. C. andD. Y. are supported by the National Research Foundation of Korea (Grants No. 2021R1C1C1008622 and No. 2021R1A4A5031460). We thank Fech Scen Khoo, Luis Manuel González-Romero, and Francisco Navarro- Lérida for discussions.
dc.description.abstractWe consider polar perturbations of static Ellis-Bronnikov wormholes and derive the coupled set of perturbation equations for the gravitational and the scalar field. For massless wormholes the perturbations decouple, and we obtain two identical master equations for the scalar and gravitational modes, which moreover agree with the master equation for the axial modes. Consequently there is isospectrality with threefold degenerate modes. For a finite mass of the background wormhole solutions, the equations are coupled. We then obtain two distinct branches of polar quasinormal modes for a given multipole number l, associated with the presence of the two types of fields. We calculate the quasinormal mode frequencies and decay rates for the branches with l = 2, 3 and 4. For a given l the real frequencies of the two branches get the closer, the higher the multipole number gets.
dc.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Ciencia e Innovación (MICINN)
dc.description.sponsorshipGerman Research Foundation (DFG)
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT)
dc.description.sponsorshipNational Research Foundation of Korea (NRF)
dc.description.sponsorshipBanco de Santander/Universidad Complutense de Madrid
dc.description.statuspub
dc.identifier.doi10.1103/physrevd.107.084024
dc.identifier.essn2470-0029
dc.identifier.issn2470-0010
dc.identifier.officialurlhttps://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.084024
dc.identifier.relatedurlhttp://dx.doi.org/10.1103/PhysRevD.107.084024
dc.identifier.urihttps://hdl.handle.net/20.500.14352/87397
dc.issue.number8
dc.journal.titlePhysical review D
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/ PID2021-125617NB-I00/ES//QuasiMode
dc.relation.projectIDinfo:eu-repo/grantAgreement/DFG// Ku612/18-1
dc.relation.projectIDinfo:eu-repo/grantAgreement/FCT// PTDC%2FFIS-AST%2F3041%2F2020
dc.relation.projectIDinfo:eu-repo/grantAgreement/NRF//2021R1C1C1008622
dc.relation.projectIDinfo:eu-repo/grantAgreement/NRF//2021R1A4A5031460
dc.relation.projectIDinfo:eu-repo/grantAgreement/Santander-UCM// PR44/21-29910/ES
dc.rights.accessRightsopen access
dc.subject.cdu51-73
dc.subject.keywordQuasi-normal modes
dc.subject.keywordParticle model
dc.subject.keywordDrainhole
dc.subject.keywordSystems
dc.subject.keywordShadow
dc.subject.ucmFísica matemática
dc.subject.unesco2212 Física Teórica
dc.titlePolar modes and isospectrality of Ellis-Bronnikov wormholes
dc.title.alternativePhysica review D
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number107
dspace.entity.typePublication
relation.isAuthorOfPublication2a6d99a8-5cf7-4359-b1e1-b96adfb2fb3f
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relation.isAuthorOfPublication.latestForDiscovery2a6d99a8-5cf7-4359-b1e1-b96adfb2fb3f
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