Dark energy, dissipation, and the coincidence problem

In a recent paper we showed that a quintessence scalar field plus a dissipative matter fluid can drive late cosmic accelerated expansion and simultaneously solve the coincidence problem. In this Brief Report we extend this result to the cases when the scalar field is replaced either by a Chaplygin g...

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Detalles Bibliográficos
Autores principales: Chimento, L.P., Jakubi, A.S., Pavón, D.
Formato: JOUR
Materias:
article
calculation
cosmos
density
energy
gravity
liquid
model
pressure
thermodynamics
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_15507998_v67_n8_p_Chimento
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:In a recent paper we showed that a quintessence scalar field plus a dissipative matter fluid can drive late cosmic accelerated expansion and simultaneously solve the coincidence problem. In this Brief Report we extend this result to the cases when the scalar field is replaced either by a Chaplygin gas or a tachyonic fluid. © 2003 The American Physical Society.

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