On Time Variations of Gravitational and Yang-Mills Constants in a Cosmological Model of Superstring Origin

Abstract

In the framework of 10-dimensional "Friedmann-Calabi-Yau" cosmology of superstring origin we show that the time variation of either Newton's gravitational constant or Yang-Mills one is unavoidable in the present epoch.

8 pages, no figures, Latex, to be published in Gravitation and Cosmology, 2014, Vol. 20, No 1

References in corpus (3)

• Variations of $\alpha$ and $G$ from nonlinear multidimensional gravity
• On multidimensional cosmological solutions with scalar fields and 2-forms corresponding to rank-3 Lie algebras: acceleration and small variation of G
• Non-singular solutions in multidimensional cosmology with a perfect fluid: acceleration and variation of G

Cited by in corpus (7)

• On stability of exponential cosmological solutions with non-static volume factor in the Einstein-Gauss-Bonnet model
• Effect of transitions in the Planck mass during inflation on primordial power spectra
• On stable exponential solutions in Einstein-Gauss-Bonnet cosmology with zero variation of G
• Stable exponential cosmological solutions with zero variation of $G$ and three different Hubble-like parameters in the Einstein-Gauss-Bonnet model with a $\Lambda$-term
• Stable exponential cosmological solutions with two factor spaces in the Einstein-Gauss-Bonnet model with a $\Lambda$-term
• Stable exponential cosmological solutions with zero variation of G in the Einstein-Gauss-Bonnet model with a Lambda-term
• Exact $(1+3+6)$-dimensional cosmological-type solutions in gravitational model with Yang-Mills field, Gauss-Bonnet term and $\Lambda$-term