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Dynamical Systems Analysis in Post-Friedmann Parametrizations of Modified Theories of Gravity
Abril Suárez, Ana Avilez, David Tamayo +2
We carry out a dynamical analysis of first order perturbations for Cold Dark Matter, Cold Dark Matter, and a couple of Modified Gravity models using the Parametrized Post-Fried…
Jeans type instability of a complex self-interacting scalar field in general relativity
Abril Suárez, Pierre-Henri Chavanis
We study the gravitational instability of a general relativistic complex scalar field with a quartic self-interaction in an infinite homogeneous static background. This quantum rel…
Cosmological evolution of a complex scalar field with repulsive or attractive self-interaction
Abril Suárez, Pierre-Henri Chavanis
We study the cosmological evolution of a complex scalar field with a self-interaction potential , possibly describing self-gravitating Bose-Einstein condensates, using a…
Hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit
Abril Suárez, Pierre-Henri Chavanis
Using a generalization of the Madelung transformation, we derive the hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit. We consider a compl…
Hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit: I. General formalism and perturbations analysis
Abril Suárez, Pierre-Henri Chavanis
Using a generalization of the Madelung transformation, we derive the hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit. We consider a compl…
Finite temperature and dissipative corrections to the Gross-Pitaevskii equation from one loop contributions
T. Matos, A. Suárez
Starting with a scalar field in a thermal bath and using the one loop quantum correction potential, we rewrite the Klein-Gordon equation in its thermodynamical representation and s…