Pure Lattice Gauge Theory in the Expanding Universe

2012/08/24 by Márton Trencséni, Trencséni, Márton
Mathematics · Physics and Astronomy · #Algebraic and Geometric Analysis #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies

paper · pdf · doi:10.48550/arxiv.1208.4990

openalex publication_date 2012/08/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using Monte Carlo methods, I study the thermodynamic properties of Z₂ Abelian lattice gauge theory in flat, homogeneous, isotropic, expanding spacetimes characterized by the scale factor a(t). The presence of the scale factor introduces a spacelike domain wall inside the four dimensional spacetime lattice where the phase transition associated with deconfinement occurs. The resulting theory appears identical to introducing a time-dependent effective coupling beta_eff, and could serve as a simple model for the electroweak phase transition of the early Universe.

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