(1+1)-Dimensional Entropic Gravity

Understand

We consider the formulation of entropic gravity in two spacetime dimensions.

• The usual gravitational force law is derived even in the absence of area, as normally required by the holographic principle.
• A special feature of this perspective concerns the nature of temperature and entropy defined at a point.
• We argue that the constancy of the gravitational force in one spatial dimension implies the information contained at each point in space is an internal degree of freedom on the manifold, and furthermore is a universal constant, contrary to previous assertions that entropic gravity in one spatial dimension is ill-defined.