Noncommutative effects in Bianchi I cosmology with reduced relativistic gas

2025/05/11 by T M Abreu, Gil de Oliveira Neto, de Abreu, Thiago Moralles +5 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Noncommutative and Quantum Gravity Theories

paper · pdf · doi:10.48550/arxiv.2505.07066

openalex publication_date 2025/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this work, we conduct a noncommutative analysis of a Bianchi I model coupled to a reduced relativistic gas. The classical field equations are modified by introducing noncommutativity through a generalized symplectic formalism. We observe that the noncommutative version of this model exhibits several significant differences compared to its commutative counterpart, as it alters the dynamics of the universe's expansion and isotropization.

Cited by

• Modified Mukhanov-Sasaki equation and primordial perturbations in κ-deformed non-commutative space-time
• Noncommutative Bianchi I and III Cosmology Models: Radiation Era Dynamics and gamma Estimation

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