Dynamics of Multi-Component, Multi-Field Quintessence

Abstract

Dynamics of the multi-component, multi-field quintessence and gravity is formulated as relativistic N-particle dynamics, embedded in a static viscus flat space and under the forces given by an interacting Lorentz scalar potential via exchange of field bosons. The Ratra-Peebles power-law potential of effective single-field quintessence can be derived from this microscopic perspective. In certain situations, the effective dynamics can be made identical to that of the single complex quintessence, except for that the overall U(1) symmetry is not manifestly broken. The present formulation provides a convenient gauge for analyzing the superhorizon perturbations and possibly for quantization of superhorizon fields and gravity.

29 pages. submitted to PRD

References in corpus (6)

• Cosmology and the Fate of Dilatation Symmetry
• Stationary dark energy: the present universe as a global attractor
• String Theory and Quintessence
• The Acceleration of the Universe, a Challenge for String Theory
• Can the quintessence be a complex scalar field?
• A Two-Field Quintessence Model

Cited by in corpus (4)

• Spintessence! New Models for Dark Matter and Dark Energy
• Kick it like DESI: PNGB quintessence with a dynamically generated initial velocity
• Future Island Universes in a Background Universe Accelerated by Cosmological Constant and by Quintessence
• Evolution of perturbation and power spectrum in a two-component ultralight axionic universe