General Relativity with Local Space-time Defects

Understand

General relativity is incomplete because it cannot describe quantum effects of space-time.

• The complete theory of quantum gravity is not yet known and to date no observational evidence exists that space-time is quantized.
• However, in most approaches to quantum gravity the space-time manifold of general relativity is only an effective limit that, among other things like higher curvature terms, should receive corrections stemming from space-time defects.
• We here develop a modification of general relativity that describes local space-time defects and solve the Friedmann equations.