Renormalization of vacuum energy in linearized quantum gravity
H. Nikolic
TL;DR
This paper proposes a renormalization scheme in linearized quantum gravity that effectively removes vacuum fluctuation contributions to the cosmological constant, addressing the longstanding cosmological-constant problem in weak gravitational fields.
Contribution
It introduces a natural renormalization method in linearized quantum gravity that cancels vacuum energy contributions to the cosmological constant.
Findings
Successfully removes vacuum fluctuation contributions in the weak-field limit
Provides a solution to the old cosmological-constant problem
Offers a new perspective on quantum gravity and vacuum energy
Abstract
In linearized quantum gravity, a shift of the average energy-momentum can be compensated by a shift of the average gravitational field. This allows a renormalization scheme that naturally removes the contribution of quantum vacuum fluctuations to the cosmological constant, solving the old cosmological-constant problem for weak gravitational fields.
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Taxonomy
TopicsNoncommutative and Quantum Gravity Theories · Cosmology and Gravitation Theories · Black Holes and Theoretical Physics