Spinodal Instabilities and the Dark Energy Problem

Abstract

The accelerated expansion of the Universe measured by high redshift Type Ia Supernovae observations is explained using the non-equilibrium dynamics of naturally soft boson fields. Spinodal instabilities inevitably present in such systems yield a very attractive mechanism for arriving at the required equation of state at late times, while satisfying all the known constraints on models of quintessence.

6 pages, 2 figures

References in corpus (3)

• The Cosmic Triangle: Revealing the State of the Universe
• Phenomenology of a realistic accelerating universe using only Planck-scale physics
• Neutrino-induced upward stopping muons in Super-Kamiokande

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• Dynamics of coupled bosonic systems with applications to preheating
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• Primordial Magnetic Fields from Dark Energy
• Proposal for a Constant Cosmological Constant
• Quintessentially Flat Scalar Potentials
• Dark energy from coexistence of phases
• Dynamical Cosmological Constant from A Very Recent Phase Transition
• Non-Equilibrium Large N Yukawa Dynamics: marching through the Landau pole
• Quantization leading to a natural flattening of the axion potential
• Non-perturbative Treatments of the Bosonic String and the Axion with Cosmological Implications
• The Fully Quantized Axion and Dark Energy