61 citations · 358 across the 21 of their papers we have counts for
4 papers · 2 filters
Dark energy from cosmological fluids obeying a Shan-Chen non-ideal equation of state
Donato Bini, Andrea Geralico, Daniele Gregoris +1
We consider a Friedmann-Robertson-Walker universe with a fluid source obeying a non-ideal equation of state with "asymptotic freedom," namely ideal gas behavior (pressure changes d…
Friction forces in cosmological models
Donato Bini, Andrea Geralico, Daniele Gregoris +1
We investigate the dynamics of test particles undergoing friction forces in a Friedmann-Robertson-Walker (FRW) spacetime. The interaction with the background fluid is modeled by in…
Piecewise Silence in Discrete Cosmological Models
Timothy Clifton, Daniele Gregoris, Kjell Rosquist
We consider a family of cosmological models in which all mass is confined to a regular lattice of identical black holes. By exploiting the reflection symmetry about planes that bis…
Scalar field inflation and Shan-Chen fluid models
Donato Bini, Andrea Geralico, Daniele Gregoris +1
A scalar field equivalent to a non-ideal "dark energy fluid" obeying a Shan-Chen-like equation of state is used as the background source of a flat Friedmann-Robertson-Walker cosmol…