Brightwell, Graham (2009) A result in 2d causal set theory: the emergence of spacetime. Journal of physics: conference series, 174 (012049). pp. 1-6. ISSN 1742-6596
A 2d model of causal set quantum gravity is constructed using a continuum-inspired dynamics. Apart from a restriction to causal set dimension and topology, the model is fully dynamical and includes all relevant 2d conformally flat degrees of freedom. Surprisingly, in the large N limit the partition function is dominated by causal sets that resemble 2d Minkowski spacetime. Thus, in this model the "entropy problem" of causal set theory is overcome and a sensible low energy limit is obtained.
|Additional Information:||© 2009 IOP Publishing Ltd|
|Library of Congress subject classification:||Q Science > Q Science (General)
Q Science > QA Mathematics
|Sets:||Departments > Mathematics|
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