Phantom dark energy with varying-mass dark matter particles: Acceleration and cosmic coincidence problem

Leon, Genly; Saridakis, Emmanuel N.


We investigate several varying-mass dark matter particle models in the framework of phantom cosmology. We examine whether there exist late-time cosmological solutions, corresponding to an accelerating universe and possessing dark energy and dark matter densities of the same order. Imposing exponential or power-law potentials and exponential or power-law mass dependence, we conclude that the coincidence problem cannot be solved or even alleviated. Thus, if dark energy is attributed to the phantom paradigm, varying-mass dark matter models cannot fulfill the basic requirement that led to their construction. (C) 2010 Elsevier B.V. All rights reserved.

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Título según WOS: ID WOS:000282157500001 Not found in local WOS DB
Título de la Revista: PHYSICS LETTERS B
Volumen: 693
Número: 1
Editorial: Elsevier
Fecha de publicación: 2010
Página de inicio: 1
Página final: 10


Notas: ISI