Viscosity in Modified Gravity
AbstractA 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.
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Brevik, I. Viscosity in Modified Gravity. Entropy 2012, 14, 2302-2310.
Brevik I. Viscosity in Modified Gravity. Entropy. 2012; 14(11):2302-2310.Chicago/Turabian Style
Brevik, Iver. 2012. "Viscosity in Modified Gravity." Entropy 14, no. 11: 2302-2310.