Work

Thin and thick bubble walls III: wall energy

Year: 2025

Type: preprint

Abstract: We study the energy-momentum tensor of a bubble wall beyond the approximation of an infinitely thin wall. To this end, we discuss the proper decomposition into wall and bulk contributions, and we use a systematic method to calculate the energy-momentum tensor at any order in the wall width. We consider the specific examples of spherical bubbles with different initial configurations, and we compare our approximations with a numerical computation.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2501.05612

Authors: Mégevand, Ariel, Membiela, Federico Agustín

Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, Fundación Ciencias Exactas y Naturales

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Universidad Nacional de Mar del Plata

OpenAlex ID: W4406316959

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