Polar modes and isospectrality of Ellis-Bronnikov wormholes

We 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,...

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Detalles Bibliográficos
Autores: Azad, Bahareh, Blázquez Salcedo, José Luis, Chew, Xiao Yan, Kunz, Jutta, Yeom, Dong-han
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/87397
Acceso en línea:https://hdl.handle.net/20.500.14352/87397
Access Level:acceso abierto
Palabra clave:51-73
Quasi-normal modes
Particle model
Drainhole
Systems
Shadow
Física matemática
2212 Física Teórica
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oai_identifier_str oai:docta.ucm.es:20.500.14352/87397
network_acronym_str ES
network_name_str España
repository_id_str
spelling Polar modes and isospectrality of Ellis-Bronnikov wormholesPhysica review DAzad, BaharehBlázquez Salcedo, José LuisChew, Xiao YanKunz, JuttaYeom, Dong-han51-73Quasi-normal modesParticle modelDrainholeSystemsShadowFísica matemática2212 Física TeóricaWe 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.American Physical SocietyUniversidad Complutense de Madrid20232023-04-1320232023-04-13journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/87397reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)InglésengAgencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2021-125617NB-I00DFG Not available Ku612FCT Not available PTDC%2FFIS-AST%2F3041%2F2020NRF Not available 2021R1C1C1008622NRF Not available 2021R1A4A5031460Santander-UCM Not available PR44 ESopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/873972026-06-02T12:44:21Z
dc.title.none.fl_str_mv Polar modes and isospectrality of Ellis-Bronnikov wormholes
Physica review D
title Polar modes and isospectrality of Ellis-Bronnikov wormholes
spellingShingle Polar modes and isospectrality of Ellis-Bronnikov wormholes
Azad, Bahareh
51-73
Quasi-normal modes
Particle model
Drainhole
Systems
Shadow
Física matemática
2212 Física Teórica
title_short Polar modes and isospectrality of Ellis-Bronnikov wormholes
title_full Polar modes and isospectrality of Ellis-Bronnikov wormholes
title_fullStr Polar modes and isospectrality of Ellis-Bronnikov wormholes
title_full_unstemmed Polar modes and isospectrality of Ellis-Bronnikov wormholes
title_sort Polar modes and isospectrality of Ellis-Bronnikov wormholes
dc.creator.none.fl_str_mv Azad, Bahareh
Blázquez Salcedo, José Luis
Chew, Xiao Yan
Kunz, Jutta
Yeom, Dong-han
author Azad, Bahareh
author_facet Azad, Bahareh
Blázquez Salcedo, José Luis
Chew, Xiao Yan
Kunz, Jutta
Yeom, Dong-han
author_role author
author2 Blázquez Salcedo, José Luis
Chew, Xiao Yan
Kunz, Jutta
Yeom, Dong-han
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 51-73
Quasi-normal modes
Particle model
Drainhole
Systems
Shadow
Física matemática
2212 Física Teórica
topic 51-73
Quasi-normal modes
Particle model
Drainhole
Systems
Shadow
Física matemática
2212 Física Teórica
description We 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.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-04-13
2023
2023-04-13
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/87397
url https://hdl.handle.net/20.500.14352/87397
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://dx.doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023 PID2021-125617NB-I00
DFG Not available Ku612
FCT Not available PTDC%2FFIS-AST%2F3041%2F2020
NRF Not available 2021R1C1C1008622
NRF Not available 2021R1A4A5031460
Santander-UCM Not available PR44 ES
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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