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2021-12-17

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/184266

Bubble wall velocity from holography

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https://doi.org/10.1103/PhysRevD.104.L121903

Abstract

Cosmological phase transitions proceed via the nucleation of bubbles that subsequently expand and collide. The resulting gravitational wave spectrum depends crucially on the bubble wall velocity. We use holography to compute the wall velocity from first principles in a strongly coupled, non-Abelian, four-dimensional gauge theory. The wall velocity is determined dynamically in terms of the nucleation temperature. We verify that ideal hydrodynamics provides a good description of the system everywhere except near the wall.

Subject

Holografia, Camps de galga (Física), Cosmologia

Subject (English)

Holography, Gauge fields (Physics), Cosmology

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Publicacions de projectes de recerca finançats per la UE

Citation

BEA, Yago, et al. Bubble wall velocity from holography. Physical Review D. 2021. Vol. 104, num. L121903. ISSN 1550-7998. [consulted: 7 of June of 2026]. Available at: https://hdl.handle.net/2445/184266

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