MOND cosmology from entropic force

Understand

We derive the MOND cosmology which is uniquely corresponding to the original MOND at galaxy scales via entropic gravity method.

• It inherits the key merit of MOND, that is, it reduces the baryonic matter and non-baryonic dark matter into baryonic matter only.
• For the first time we obtain the critical parameter in MOND, i.e., the transition acceleration $a_c$ at cosmological scale.
• We thus solve the long-standing coincidence problem $a_c\sim cH_{0}$.