Andrés Lueiza-Colipí

Symmetry-Driven $k$-Essence Cosmological Dynamics

We investigate a family of $k$-essence cosmological models selected by the requirement that the field equations admit a nontrivial variational symmetry. Inside this general family of theories, we concentrate on the simplest modification to quintessence, induced by power-law terms of the kinetic energy. The symmetry gen...