Observational Consequences of Dark Energy Decay

Understand

We consider the generic scenario of dark energy which arises through the latent heat of a hidden sector first order cosmological phase transition.

• This field could account for the extra radiation degree of freedom suggested by the CMB.
• We present the bubble nucleation solution for the viscous limit.
• The decay rate of the field is constrained by published KSZ data, and may be an explanation of current excess ISW correlations.