In general relativity, gravity arises from the curvature of spacetime and that curvature derives from the distribution of matter. However, matter is governed by quantum mechanics. Integration of these two theories faces many problems. In an (unrealistic) model space called the anti-de Sitter space, the AdS/CFT correspondence allows a quantum gravitational system to be related to a quantum field theory without gravity. Using this correspondence, Mark Van Raamsdonk suggested that spacetime arises as an emergent phenomenon of the quantum degrees of freedom that are entangled and live in the boundary of the spacetime.
In general relativity gravity arises from the curvature of spacetime and that curvature derives from the distribution of matter However matter is governed by quantum mechanics Integration of these two theories faces many problems In an (unrealistic) model space called the anti-de Sitter space the AdS/CFT correspondence allows a quantum gravitational system to be related to a quantum field theory without gravity Using this correspondence Mark Van Raamsdonk suggested that spacetime arises as an emergent phenomenon of the quantum degrees of freedom that are entangled and live in the boundary of the spacetime