Journal article 106 views 4 downloads

Novel probe of graviton dispersion relations at nanohertz frequencies

Bill Atkins Orcid Logo, Ameek Malhotra Orcid Logo, Gianmassimo Tasinato Orcid Logo

Physical Review D, Volume: 110, Issue: 12, Start page: 124018

Swansea University Authors: Bill Atkins Orcid Logo, Ameek Malhotra Orcid Logo, Gianmassimo Tasinato Orcid Logo

  • 68301.VOR.pdf

    PDF | Version of Record

    Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.

    Download (1.27MB)

Abstract

We generalise Phinney’s ‘practical theorem’ to account for modified graviton dispersion relations motivated by certain cosmological scenarios. Focusing on specific examples, we show how such modifications can induce characteristic localised distortions– bumps– in the frequency profile of the stochas...

Full description

Published in: Physical Review D
ISSN: 2470-0010 2470-0029
Published: American Physical Society (APS) 2024
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa68301
first_indexed 2024-11-25T14:21:49Z
last_indexed 2025-01-30T20:24:37Z
id cronfa68301
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2025-01-30T15:31:14.9588452</datestamp><bib-version>v2</bib-version><id>68301</id><entry>2024-11-19</entry><title>Novel probe of graviton dispersion relations at nanohertz frequencies</title><swanseaauthors><author><sid>44d9c939abda014cec8b6089f151d060</sid><ORCID>0009-0004-6931-8380</ORCID><firstname>Bill</firstname><surname>Atkins</surname><name>Bill Atkins</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>dd6ebf069325cdbdbeb597fa64d48063</sid><ORCID>0000-0001-8346-9995</ORCID><firstname>Ameek</firstname><surname>Malhotra</surname><name>Ameek Malhotra</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>cb754b073d1e4949c5e3db97744d3301</sid><ORCID>0000-0002-9835-4864</ORCID><firstname>Gianmassimo</firstname><surname>Tasinato</surname><name>Gianmassimo Tasinato</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2024-11-19</date><abstract>We generalise Phinney&#x2019;s &#x2018;practical theorem&#x2019; to account for modified graviton dispersion relations motivated by certain cosmological scenarios. Focusing on specific examples, we show how such modifications can induce characteristic localised distortions&#x2013; bumps&#x2013; in the frequency profile of the stochastic gravitational wave background emitted from distant binary sources. We concentrate on gravitational waves at nano-Hertz frequencies probed by pulsar timing arrays, and we forecast the capabilities of future experiments to accurately probe parameters controlling modified dispersion relations. Our predictions are based on properties of gravitational waves emitted in the first inspiral phase of the binary process, and do not rely on assumptions of non-linear effects occurring during the binary merging phase.</abstract><type>Journal Article</type><journal>Physical Review D</journal><volume>110</volume><journalNumber>12</journalNumber><paginationStart>124018</paginationStart><paginationEnd/><publisher>American Physical Society (APS)</publisher><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>2470-0010</issnPrint><issnElectronic>2470-0029</issnElectronic><keywords/><publishedDay>9</publishedDay><publishedMonth>12</publishedMonth><publishedYear>2024</publishedYear><publishedDate>2024-12-09</publishedDate><doi>10.1103/physrevd.110.124018</doi><url/><notes/><college>COLLEGE NANME</college><CollegeCode>COLLEGE CODE</CollegeCode><institution>Swansea University</institution><apcterm>SU Library paid the OA fee (TA Institutional Deal)</apcterm><funders>We are partially funded by STFC Grant No. ST/X000648/1.</funders><projectreference/><lastEdited>2025-01-30T15:31:14.9588452</lastEdited><Created>2024-11-19T14:08:47.0197861</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Biosciences, Geography and Physics - Physics</level></path><authors><author><firstname>Bill</firstname><surname>Atkins</surname><orcid>0009-0004-6931-8380</orcid><order>1</order></author><author><firstname>Ameek</firstname><surname>Malhotra</surname><orcid>0000-0001-8346-9995</orcid><order>2</order></author><author><firstname>Gianmassimo</firstname><surname>Tasinato</surname><orcid>0000-0002-9835-4864</orcid><order>3</order></author></authors><documents><document><filename>68301__33142__2d394f1539a4471fbc4ce10cbb839070.pdf</filename><originalFilename>68301.VOR.pdf</originalFilename><uploaded>2024-12-16T10:55:57.5606499</uploaded><type>Output</type><contentLength>1327378</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://creativecommons.org/licenses/by/4.0/</licence></document></documents><OutputDurs/></rfc1807>
spelling 2025-01-30T15:31:14.9588452 v2 68301 2024-11-19 Novel probe of graviton dispersion relations at nanohertz frequencies 44d9c939abda014cec8b6089f151d060 0009-0004-6931-8380 Bill Atkins Bill Atkins true false dd6ebf069325cdbdbeb597fa64d48063 0000-0001-8346-9995 Ameek Malhotra Ameek Malhotra true false cb754b073d1e4949c5e3db97744d3301 0000-0002-9835-4864 Gianmassimo Tasinato Gianmassimo Tasinato true false 2024-11-19 We generalise Phinney’s ‘practical theorem’ to account for modified graviton dispersion relations motivated by certain cosmological scenarios. Focusing on specific examples, we show how such modifications can induce characteristic localised distortions– bumps– in the frequency profile of the stochastic gravitational wave background emitted from distant binary sources. We concentrate on gravitational waves at nano-Hertz frequencies probed by pulsar timing arrays, and we forecast the capabilities of future experiments to accurately probe parameters controlling modified dispersion relations. Our predictions are based on properties of gravitational waves emitted in the first inspiral phase of the binary process, and do not rely on assumptions of non-linear effects occurring during the binary merging phase. Journal Article Physical Review D 110 12 124018 American Physical Society (APS) 2470-0010 2470-0029 9 12 2024 2024-12-09 10.1103/physrevd.110.124018 COLLEGE NANME COLLEGE CODE Swansea University SU Library paid the OA fee (TA Institutional Deal) We are partially funded by STFC Grant No. ST/X000648/1. 2025-01-30T15:31:14.9588452 2024-11-19T14:08:47.0197861 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Bill Atkins 0009-0004-6931-8380 1 Ameek Malhotra 0000-0001-8346-9995 2 Gianmassimo Tasinato 0000-0002-9835-4864 3 68301__33142__2d394f1539a4471fbc4ce10cbb839070.pdf 68301.VOR.pdf 2024-12-16T10:55:57.5606499 Output 1327378 application/pdf Version of Record true Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. true eng https://creativecommons.org/licenses/by/4.0/
title Novel probe of graviton dispersion relations at nanohertz frequencies
spellingShingle Novel probe of graviton dispersion relations at nanohertz frequencies
Bill Atkins
Ameek Malhotra
Gianmassimo Tasinato
title_short Novel probe of graviton dispersion relations at nanohertz frequencies
title_full Novel probe of graviton dispersion relations at nanohertz frequencies
title_fullStr Novel probe of graviton dispersion relations at nanohertz frequencies
title_full_unstemmed Novel probe of graviton dispersion relations at nanohertz frequencies
title_sort Novel probe of graviton dispersion relations at nanohertz frequencies
author_id_str_mv 44d9c939abda014cec8b6089f151d060
dd6ebf069325cdbdbeb597fa64d48063
cb754b073d1e4949c5e3db97744d3301
author_id_fullname_str_mv 44d9c939abda014cec8b6089f151d060_***_Bill Atkins
dd6ebf069325cdbdbeb597fa64d48063_***_Ameek Malhotra
cb754b073d1e4949c5e3db97744d3301_***_Gianmassimo Tasinato
author Bill Atkins
Ameek Malhotra
Gianmassimo Tasinato
author2 Bill Atkins
Ameek Malhotra
Gianmassimo Tasinato
format Journal article
container_title Physical Review D
container_volume 110
container_issue 12
container_start_page 124018
publishDate 2024
institution Swansea University
issn 2470-0010
2470-0029
doi_str_mv 10.1103/physrevd.110.124018
publisher American Physical Society (APS)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description We generalise Phinney’s ‘practical theorem’ to account for modified graviton dispersion relations motivated by certain cosmological scenarios. Focusing on specific examples, we show how such modifications can induce characteristic localised distortions– bumps– in the frequency profile of the stochastic gravitational wave background emitted from distant binary sources. We concentrate on gravitational waves at nano-Hertz frequencies probed by pulsar timing arrays, and we forecast the capabilities of future experiments to accurately probe parameters controlling modified dispersion relations. Our predictions are based on properties of gravitational waves emitted in the first inspiral phase of the binary process, and do not rely on assumptions of non-linear effects occurring during the binary merging phase.
published_date 2024-12-09T10:19:58Z
_version_ 1824480715099602944
score 11.051391