Coulomb Force as an Entropic Force

Understand

Motivated by Verlinde's theory of entropic gravity, we give a tentative explanation to Coulomb's law with an entropic force.

• When trying to do this, we find the equipartition rule should be extended to charges and the concept of temperature should be reinterpreted.
• If one accepts the holographic principle as well as our generalizations and reinterpretations, then Coulomb's law, the Poisson equation and the Maxwell equations can be derived smoothly.
• Our attempt can be regarded as a new way to unify the electromagnetic force with gravity, from the entropic origin.