Directions in Causal Set Quantum Gravity

Details Directions in Causal Set Quantum Gravity Directions in Causal Set Quantum Gravity

2011-03-31

arxiv.org/abs/1103.6272v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

31 pages, 7 figures, To appear in Recent Research in Quantum Gravity, edited by A. Dasgupta (Nova Science Publishers NY)

Scientific paper

In the causal set approach to quantum gravity the spacetime continuum arises as an approximation to a fundamentally discrete substructure, the causal set, which is a locally finite partially ordered set. The causal set paradigm was elucidated in a classic paper by Bombelli, Lee, Meyer and Sorkin in 1987. While early kinematical results already showed promise, the program received a substantial impetus about a decade ago with the work of Rideout and Sorkin on a classical stochastic growth dynamics for causal sets. Considerable progress has been made ever since in our understanding of causal set theory while leaving undisturbed the basic paradigm. Recent highlights include a causal set expression for the Einstein-Hilbert action and the construction of a scalar field Feynman propagator on a fixed causal set. The aim of the present article is to give a broad overview of the results in causal set theory while pointing out directions for future investigations.

Affiliated with

Also associated with

No associations

Rating

Directions in Causal Set Quantum Gravity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Directions in Causal Set Quantum Gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directions in Causal Set Quantum Gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-247082