Coincidence problem within dark energy as a coupled self-interacting Bose-Einstein gas

Abstract

A late accelerated expansion of the Universe is obtained from non-relativistic particles with a short-range attractive interaction, and low enough temperature to produce a Bose-Einstein condensate; by considering coupled dark-energy particles, energy is interchanged with dark matter, allowing it to describe recent acceleration by strengthening its effect. We show that for a sizable range of parameters, dark energy and dark matter evolve with similar energy densities, solving the coincidence problem, and in agreement with the luminosity distance vs redshift, derived from supernova data.

17 pages, 7 figures

References in corpus (10)

• Dynamics of dark energy
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• Dark Energy and the Accelerating Universe
• Cosmologies with Energy Exchange
• Theoretical Models of Dark Energy
• New constraints on Coupled Dark Energy from Planck
• Toward a solution of the coincidence problem
• Can Dark Matter Decay in Dark Energy?
• Coupling dark energy with Standard Model states

Cited by in corpus (6)

• Is it possible to obtain cosmic accelerated expansion through energy transfer between different energy densities?
• Interactive mixture of inhomogeneous dark fluids driven by dark energy: a dynamical systems analysis
• A mechanism for formation of Bose-Einstein condensation in cosmology
• Dynamics of a spherically symmetric inhomogeneous coupled dark energy model with coupling term proportional to non relatvistic matter
• Observational constraints on the free parameters of an interacting Bose-Einstein gas as a dark-energy model
• Primordial gravitational waves spectrum in the interacting Bose-Einstein gas model