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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/65619
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dc.creatorGláuber Carvalho Dorschpt_BR
dc.creatorStephan J. Huberpt_BR
dc.creatorThomas Konstandinpt_BR
dc.date.accessioned2024-03-11T13:21:51Z-
dc.date.available2024-03-11T13:21:51Z-
dc.date.issued2022-
dc.citation.volume2022pt_BR
dc.citation.issue4pt_BR
dc.citation.spage1pt_BR
dc.citation.epage15pt_BR
dc.identifier.doihttps://doi.org/10.1088/1475-7516/2022/04/010pt_BR
dc.identifier.issn1475-7516pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/65619-
dc.description.resumoWe revisit the computation of bubble wall friction during a cosmological first-order phase transition, using an extended fluid Ansatz to solve the linearized Boltzmann equation. A singularity is found in the fluctuations of background species as the wall approaches the speed of sound. Using hydrodynamics, we argue that a discontinuity across the speed of sound is expected on general grounds, which manifests itself as the singularity in the solution of the linearized system. We discuss this result in comparison with alternative approaches proposed recently, which find a regular behaviour of the friction for all velocities.pt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofJournal of Cosmology and Astroparticle Physics-
dc.rightsAcesso Restritopt_BR
dc.subjectCosmological phase transitionspt_BR
dc.subjectParticle physicspt_BR
dc.subjectCosmologypt_BR
dc.subject.otherTransição de fasept_BR
dc.subject.otherCosmologiapt_BR
dc.titleA sonic boom in bubble wall frictionpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://iopscience.iop.org/article/10.1088/1475-7516/2022/04/010pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6177-366Xpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2492-7930pt_BR
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