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arXiv · 2607.27285

Hubble tension problem encompassed by phase-space quantum cosmology

Alex E. Bernardini
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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 $\Lambda$CDM cosmological model, our approach encompasses generalized quantum cosmological scenarios that also include curvature and dark sector modifications.

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Alex E. Bernardini. 2026-07-29. Hubble tension problem encompassed by phase-space quantum cosmology. https://doi.org/10.1016/j.physletb.2026.140645

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