Restoring Holographic Dark Energy in Brane Cosmology

Understand

We present a generalized version of holographic dark energy arguing that it must be considered in the maximally subspace of a cosmological model.

• In the context of brane cosmology it leads to a bulk holographic dark energy which transfers its holographic nature to the effective 4D dark energy.
• As an application we use a single-brane model and we show that in the low energy limit the behavior of the effective holographic dark energy coincides with that predicted by conventional 4D calculations.
• However, a finite bulk can lead to radically different results.