167 citations · 682 across the 14 of their papers we have counts for
4 papers · 1 filter
Alpha effect and diffusivity in helical turbulence with shear
Dhrubaditya Mitra, Petri J. Käpylä, Reza Tavakol +1
We study the dependence of turbulent transport coefficients, such as the components of the tensor () and the turbulent magnetic diffusivity tensor (), on shear…
Recollapsing quantum cosmologies and the question of entropy
Martin Bojowald, Reza Tavakol
Recollapsing homogeneous and isotropic models present one of the key ingredients for cyclic scenarios. This is considered here within a quantum cosmological framework in presence o…
Constraints on scalar-tensor models of dark energy from observational and local gravity tests
Shinji Tsujikawa, Kotub Uddin, Shuntaro Mizuno +2
We construct a family of viable scalar-tensor models of dark energy (DE) which possess a phase of late-time acceleration preceded by a standard matter era, while at the same time s…
Loop Quantum Cosmology: Effective theories and oscillating universes
Martin Bojowald, Reza Tavakol
Despite its great successes in accounting for the current observations, the so called `standard' model of cosmology faces a number of fundamental unresolved questions. Paramount am…