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Field-theoretic derivation of bubble-wall force

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cris.lastimport.scopus2024-02-12T19:50:10Z
dc.abstract.enWe derive a general quantum field theoretic formula for the force acting on expanding bubbles of a first order phase transition in the early Universe setting. In the thermodynamic limit the force is proportional to the entropy increase across the bubble of active species that exert a force on the bubble interface. When local thermal equilibrium is attained, we find a strong friction force which grows as the Lorentz factor squared, such that the bubbles quickly reach stationary state and cannot run away. We also study an opposite case when scatterings are negligible across the wall (ballistic limit), finding that the force saturates for moderate Lorentz factors thus allowing for a runaway behavior. We apply our formalism to a massive real scalar field, the standard model and its simple portal extension. For completeness, we also present a derivation of the renormalized, one-loop, thermal energy-momentum tensor for the standard model and demonstrate its gauge independence.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMancha, Marc Barroso
dc.contributor.authorProkopec, Tomislav
dc.contributor.authorŚwieżewska, Bogumiła
dc.date.accessioned2024-01-25T00:40:14Z
dc.date.available2024-01-25T00:40:14Z
dc.date.issued2021
dc.description.financePublikacja bezkosztowa
dc.description.number1
dc.description.volume2021
dc.identifier.doi10.1007/JHEP01(2021)070
dc.identifier.issn1126-6708
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/107088
dc.identifier.weblinkhttps://doi.org/10.1007/JHEP01(2021)070
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofJournal of High Energy Physics
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleField-theoretic derivation of bubble-wall force
dc.typeJournalArticle
dspace.entity.typePublication