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Vacuum Energy as the Origin of the Gravitational Constant

2009/10/22 by Durmus A. Demir, Durmuş A. Demir · 22 citations
Physics and Astronomy · #Cosmological constant #Cosmology and Gravitation Theories #Einstein tensor #General relativity #Gravitation #Gravitational constant #Gravitational energy #Metric (unit) #Metric tensor #Noncommutative and Quantum Gravity Theories #Quantum Electrodynamics and Casimir Effect #Spacetime #Tensor (intrinsic definition) #Vacuum energy #astro-ph.CO #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1007/s10701-009-9364-z

published in Foundations of Physics 39(12), 1407-1425 (Springer Science+Business Media) · 28 pages, 1 figure. Added references

arxiv created 2009/10/22 · openalex publication_date 2009/10/26 · arxiv updated 2010/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We develop a geometro-dynamical approach to the cosmological constant problem (CCP) by invoking a geometry induced by the energy-momentum tensor of vacuum, matter and radiation. The construction, which utilizes the dual role of the metric tensor that it structures both the spacetime manifold and energy-momentum tensor of the vacuum, gives rise to a framework in which the vacuum energy induced by matter and radiation, instead of gravitating, facilitates the generation of the gravitational constant. The non-vacuum sources comprising matter and radiation gravitate normally. At the level of classical gravitation, the mechanism deadens the CCP yet quantum gravitational effects, if can be strong in de Sitter space, can keep it existent.

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