Constraint on vector coherent oscillation dark matter with kinetic function
Kazunori Nakayama
Abstract
A spatially uniform vector condensate can be formed during inflation if the vector boson is coupled to the inflaton through nontrivial kinetic function. The coherent oscillation of such a massive vector boson is a dark matter candidate. In this paper we consider the case where the vector boson energy density increases during inflation and show that the curvature/isocurvature perturbation gives stringent constraint on this scenario.
Topics & Concepts
PhysicsInflatonVector bosonParticle physicsBosonKinetic energyOscillation (cell signaling)Dark matterInflation (cosmology)Dark energyCurvatureQuantum electrodynamicsCosmologyClassical mechanicsTheoretical physicsQuantum mechanicsBiologyGeometryGeneticsMathematicsCosmology and Gravitation TheoriesDark Matter and Cosmic PhenomenaBlack Holes and Theoretical Physics