Cosmological Constant from Conformal Fluctuations of the Metric

2001/07/26 by A. H. Blin, Alex H. Blin, Blin, Alex H.
Physics and Astronomy · #Advanced Mathematical Theories and Applications #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #FOS: Physical sciences #Relativity and Gravitational Theory #astro-ph

paper · pdf · doi:10.48550/arxiv.astro-ph/0107503

5 pages, LaTeX, 1 figure (EPS)

arxiv created 2001/07/26 · openalex publication_date 2001/07/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

At the level of the Planck scale, the spacetime metric has to be considered a quantum variable. Conformal quantum fluctuations of the metric tensor are studied here. They lead to an extra term in the Einstein equations which can be identified with a cosmological constant. Quantum fluctuations may therefore contribute to an accelerated expansion of the universe, in accordance with newer observational data.

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