Brane motion in a compact space: Adiabatic perturbations of brane-bulk coupled fluids

When a brane is moving in a compact space, bulk-probing signals originating at the brane can arrive back at the brane outside the lightcone of the emitting event. In this paper, we study how adiabatic perturbations in the brane fluid, coupled to a bulk fluid, propagate in the moving brane. In the no...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. D 2024-01, Vol.109 (2), Article 023540
Main Authors: Bernardo, Heliudson, Guo, Fangyi
Format: Article
Language:English
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites cdi_FETCH-LOGICAL-c244t-1e757c54c0962f663c7fad694893065eb3e10b9bc63dd8f5d103c1cb909d3143
container_end_page
container_issue 2
container_start_page
container_title Physical review. D
container_volume 109
creator Bernardo, Heliudson
Guo, Fangyi
description When a brane is moving in a compact space, bulk-probing signals originating at the brane can arrive back at the brane outside the lightcone of the emitting event. In this paper, we study how adiabatic perturbations in the brane fluid, coupled to a bulk fluid, propagate in the moving brane. In the nondissipative regime, we find an effective sound speed for such perturbations, depending on the brane and bulk fluid energy densities, equations of state, and brane speed. In the tight-coupling approximation, the effective sound speed might be superluminal for brane and bulk fluids that satisfy the strong energy condition. This has immediate consequences for brane-world cosmology models.
doi_str_mv 10.1103/PhysRevD.109.023540
format article
fullrecord <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1103_PhysRevD_109_023540</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1103_PhysRevD_109_023540</sourcerecordid><originalsourceid>FETCH-LOGICAL-c244t-1e757c54c0962f663c7fad694893065eb3e10b9bc63dd8f5d103c1cb909d3143</originalsourceid><addsrcrecordid>eNo9kF1LwzAUhoMoOOZ-gTf5A60nTZou3s2pUxgoMq9LPjHaNiVphf17W6benPPwwnvgPAhdE8gJAXrz-nFMb_b7PicgcihoyeAMLQpWQQZQiPN_JnCJVil9woQcREXIAr3fRdlZ3IbBhw77DkusQ9tLPeA0TXuLN8ZLJQevcW_jMMaZQ5dwcFjN3UyNzddUGvvGGuya0Zt0hS6cbJJd_e4lOjw-HLZP2f5l97zd7DNdMDZkxFZlpUumQfDCcU515aThgq0FBV5aRS0BJZTm1Ji1K830riZaCRCGEkaXiJ7O6hhSitbVffStjMeaQD27qf_cTIGoT27oD_mfWW4</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Brane motion in a compact space: Adiabatic perturbations of brane-bulk coupled fluids</title><source>American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)</source><creator>Bernardo, Heliudson ; Guo, Fangyi</creator><creatorcontrib>Bernardo, Heliudson ; Guo, Fangyi</creatorcontrib><description>When a brane is moving in a compact space, bulk-probing signals originating at the brane can arrive back at the brane outside the lightcone of the emitting event. In this paper, we study how adiabatic perturbations in the brane fluid, coupled to a bulk fluid, propagate in the moving brane. In the nondissipative regime, we find an effective sound speed for such perturbations, depending on the brane and bulk fluid energy densities, equations of state, and brane speed. In the tight-coupling approximation, the effective sound speed might be superluminal for brane and bulk fluids that satisfy the strong energy condition. This has immediate consequences for brane-world cosmology models.</description><identifier>ISSN: 2470-0010</identifier><identifier>EISSN: 2470-0029</identifier><identifier>DOI: 10.1103/PhysRevD.109.023540</identifier><language>eng</language><ispartof>Physical review. D, 2024-01, Vol.109 (2), Article 023540</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c244t-1e757c54c0962f663c7fad694893065eb3e10b9bc63dd8f5d103c1cb909d3143</cites><orcidid>0000-0002-3132-4687 ; 0000-0001-5151-6785</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Bernardo, Heliudson</creatorcontrib><creatorcontrib>Guo, Fangyi</creatorcontrib><title>Brane motion in a compact space: Adiabatic perturbations of brane-bulk coupled fluids</title><title>Physical review. D</title><description>When a brane is moving in a compact space, bulk-probing signals originating at the brane can arrive back at the brane outside the lightcone of the emitting event. In this paper, we study how adiabatic perturbations in the brane fluid, coupled to a bulk fluid, propagate in the moving brane. In the nondissipative regime, we find an effective sound speed for such perturbations, depending on the brane and bulk fluid energy densities, equations of state, and brane speed. In the tight-coupling approximation, the effective sound speed might be superluminal for brane and bulk fluids that satisfy the strong energy condition. This has immediate consequences for brane-world cosmology models.</description><issn>2470-0010</issn><issn>2470-0029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNo9kF1LwzAUhoMoOOZ-gTf5A60nTZou3s2pUxgoMq9LPjHaNiVphf17W6benPPwwnvgPAhdE8gJAXrz-nFMb_b7PicgcihoyeAMLQpWQQZQiPN_JnCJVil9woQcREXIAr3fRdlZ3IbBhw77DkusQ9tLPeA0TXuLN8ZLJQevcW_jMMaZQ5dwcFjN3UyNzddUGvvGGuya0Zt0hS6cbJJd_e4lOjw-HLZP2f5l97zd7DNdMDZkxFZlpUumQfDCcU515aThgq0FBV5aRS0BJZTm1Ji1K830riZaCRCGEkaXiJ7O6hhSitbVffStjMeaQD27qf_cTIGoT27oD_mfWW4</recordid><startdate>20240131</startdate><enddate>20240131</enddate><creator>Bernardo, Heliudson</creator><creator>Guo, Fangyi</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-3132-4687</orcidid><orcidid>https://orcid.org/0000-0001-5151-6785</orcidid></search><sort><creationdate>20240131</creationdate><title>Brane motion in a compact space: Adiabatic perturbations of brane-bulk coupled fluids</title><author>Bernardo, Heliudson ; Guo, Fangyi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c244t-1e757c54c0962f663c7fad694893065eb3e10b9bc63dd8f5d103c1cb909d3143</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bernardo, Heliudson</creatorcontrib><creatorcontrib>Guo, Fangyi</creatorcontrib><collection>CrossRef</collection><jtitle>Physical review. D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bernardo, Heliudson</au><au>Guo, Fangyi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Brane motion in a compact space: Adiabatic perturbations of brane-bulk coupled fluids</atitle><jtitle>Physical review. D</jtitle><date>2024-01-31</date><risdate>2024</risdate><volume>109</volume><issue>2</issue><artnum>023540</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>When a brane is moving in a compact space, bulk-probing signals originating at the brane can arrive back at the brane outside the lightcone of the emitting event. In this paper, we study how adiabatic perturbations in the brane fluid, coupled to a bulk fluid, propagate in the moving brane. In the nondissipative regime, we find an effective sound speed for such perturbations, depending on the brane and bulk fluid energy densities, equations of state, and brane speed. In the tight-coupling approximation, the effective sound speed might be superluminal for brane and bulk fluids that satisfy the strong energy condition. This has immediate consequences for brane-world cosmology models.</abstract><doi>10.1103/PhysRevD.109.023540</doi><orcidid>https://orcid.org/0000-0002-3132-4687</orcidid><orcidid>https://orcid.org/0000-0001-5151-6785</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 2470-0010
ispartof Physical review. D, 2024-01, Vol.109 (2), Article 023540
issn 2470-0010
2470-0029
language eng
recordid cdi_crossref_primary_10_1103_PhysRevD_109_023540
source American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
title Brane motion in a compact space: Adiabatic perturbations of brane-bulk coupled fluids
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-24T17%3A11%3A45IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Brane%20motion%20in%20a%20compact%20space:%20Adiabatic%20perturbations%20of%20brane-bulk%20coupled%20fluids&rft.jtitle=Physical%20review.%20D&rft.au=Bernardo,%20Heliudson&rft.date=2024-01-31&rft.volume=109&rft.issue=2&rft.artnum=023540&rft.issn=2470-0010&rft.eissn=2470-0029&rft_id=info:doi/10.1103/PhysRevD.109.023540&rft_dat=%3Ccrossref%3E10_1103_PhysRevD_109_023540%3C/crossref%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c244t-1e757c54c0962f663c7fad694893065eb3e10b9bc63dd8f5d103c1cb909d3143%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true