  In Verlinde's theory of entropic gravity, the internal degrees of freedom are
marked by "bits", but the microscopic origin of "bits" is unknown hitherto. To
this direction, we adopt the quantum harmonic oscillators to naively model the
internal degrees of freedom. In this model, the equipartition relation is
modified at the low temperature. The Newton's law and Poisson's equation of
gravity are reproduced at small distances, but they receive appreciable
corrections at large distances. Geometrization of gravity for this model is
explored, resulting in modifications to Einstein equations.
