Reducing the $H_0$ Tension with Exponential Acoustic Dark Energy

Understand

The Hubble tension arises from different observations between the late-time and early Universe.

• We explore a new model with dark fluid, called the exponential Acoustic Dark Energy (eADE) model, to relieve the Hubble tension.
• The eADE model gives an exponential form of the equation of state (EoS) in the acoustic dark energy, which is the first time to explore an exponential form for the EoS.
• In this model, the gravitational effects from the acoustic oscillations of the model can impact the CMB phenomena at the matter radiation equally epoch.