Structure Formation in the Effective Field Theory of Holographic Dark Energy

Understand

We investigate the structure formation in the effective field theory of the holographic dark energy.

• The equation of motion for the energy contrast $\delta_m$ of the cold dark matter is the same as the one in the general relativity up to the leading order in the small scale limit $k\gg aH$, provided the equation of state is Quintessence-like.
• Our effective field theory breaks down while the equation of state becomes phantom-like.
• We propose a solution to this problem by eliminating the scalar graviton.