Gravitational waves from vacuum first-order phase transitions : From the envelope to the lattice

Show simple item record Cutting, Daniel Hindmarsh, Mark Weir, David J. 2018-06-28T06:37:01Z 2018-06-28T06:37:01Z 2018-06-12
dc.identifier.citation Cutting , D , Hindmarsh , M & Weir , D J 2018 , ' Gravitational waves from vacuum first-order phase transitions : From the envelope to the lattice ' , Physical Review D , vol. 97 , no. 12 , 123513 .
dc.identifier.other PURE: 108340718
dc.identifier.other PURE UUID: 82cfee2b-0b49-4cf1-8b35-d7b12ab73fe2
dc.identifier.other WOS: 000434931800003
dc.identifier.other Scopus: 85049498191
dc.identifier.other ORCID: /0000-0001-6986-0517/work/46224245
dc.identifier.other ORCID: /0000-0002-9307-437X/work/46224344
dc.identifier.other ORCID: /0000-0002-7395-7802/work/108467226
dc.description.abstract We conduct large scale numerical simulations of gravitational wave production at a first-order vacuum phase transition. We find a power law for the gravitational wave power spectrum at high wave number which falls off as k(-1.5) rather than the k(-1) produced by the envelope approximation. The peak of the power spectrum is shifted to slightly lower wave numbers from that of the envelope approximation. The envelope approximation reproduces our results for the peak power less well, agreeing only to within an order of magnitude. After the bubbles finish colliding, the scalar field oscillates around the true vacuum. An additional feature is produced in the UV of the gravitational wave power spectrum, and this continues to grow linearly until the end of our simulation. The additional feature peaks at a length scale close to the bubble wall thickness and is shown to have a negligible contribution to the energy in gravitational waves, providing the scalar field mass is much smaller than the Planck mass. en
dc.format.extent 15
dc.language.iso eng
dc.relation.ispartof Physical Review D
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject KINK DYNAMICS
dc.subject FALSE VACUUM
dc.subject RADIATION
dc.subject GROWTH
dc.subject DECAY
dc.subject 114 Physical sciences
dc.title Gravitational waves from vacuum first-order phase transitions : From the envelope to the lattice en
dc.type Article
dc.contributor.organization Department of Physics
dc.contributor.organization Helsinki Institute of Physics
dc.description.reviewstatus Peer reviewed
dc.relation.issn 2470-0010
dc.rights.accesslevel openAccess
dc.type.version publishedVersion
dc.relation.funder Valtion perusrahoitus/hankkeet
dc.relation.funder Valtion perusrahoitus/hankkeet
dc.relation.funder Suomen Akatemia Projektilaskutus
dc.relation.funder Suomen Akatemia Projektilaskutus

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