Viscosity in Modified GravityReportar como inadecuado




Viscosity in Modified Gravity - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Department of Energy and Process Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway





Abstract A bulk viscosity is introduced in the formalism of modified gravity. It is shownthat, based on a natural scaling law for the viscosity, a simple solution can be found forquantities such as the Hubble parameter and the energy density. These solutions mayincorporate a viscosity-induced Big Rip singularity. By introducing a phase transition inthe cosmic fluid, the future singularity can nevertheless in principle be avoided. View Full-Text

Keywords: modified gravity; cosmology; viscous cosmology modified gravity; cosmology; viscous cosmology





Autor: Iver Brevik

Fuente: http://mdpi.com/



DESCARGAR PDF




Documentos relacionados