Hubble tension problem encompassed by phase-space quantum cosmology

2026/06/20 by Alex E. Bernardini
Physics and Astronomy · #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #gr-qc

paper · pdf · doi:10.1016/j.physletb.2026.140645

published as Phys. Lett. B 879, 140645 (2026) · 21 pages, 4 figures

openalex created_date 2026/06/20 · openalex publication_date 2026/06/20 · openalex updated_date 2026/06/27 · arxiv created 2026/07/29 · arxiv updated 2026/07/31

Abstract

Analytical solutions encompassing the so-called Hubble tension problem are revisited through the framework of Weyl–Wigner quantum mechanics and discussed in the context of generalized phase-space scenarios of quantum cosmology. After reviewing the nature of the problem and its recent developments, an extended formulation constructed within the quantum phase-space framework to address the Hubble tension is proposed. For the quantum cosmology described in the minisuperspace framework through (generic) localized phase-space quantum states, when residual quantum corrections to the Einstein–Friedmann equation are analytically derived, quantum effects are shown to suppress the Hubble tension divergence between early- and late-time predictions. Besides addressing the Hubble tension problem within the standard ΛCDM cosmological model, our approach encompasses generalized quantum cosmological scenarios that also include curvature and dark sector modifications.

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