Dimensional Reduction in Quantum Gravity

dc.creatorHooft, G. 't
dc.date1993-10-19
dc.date2009-03-20
dc.date.accessioned2026-07-07T12:54:20Z
dc.date.available2026-07-07T12:54:20Z
dc.descriptionThe requirement that physical phenomena associated with gravitational collapse should be duly reconciled with the postulates of quantum mechanics implies that at a Planckian scale our world is not 3+1 dimensional. Rather, the observable degrees of freedom can best be described as if they were Boolean variables defined on a two-dimensional lattice, evolving with time. This observation, deduced from not much more than unitarity, entropy and counting arguments, implies severe restrictions on possible models of quantum gravity. Using cellular automata as an example it is argued that this dimensional reduction implies more constraints than the freedom we have in constructing models. This is the main reason why so-far no completely consistent mathematical models of quantum black holes have been found. Essay dedicated to Abdus Salam.
dc.description13 pages. TEX. 2 figures in postscript. Figures are now made visible if pdf file is downloaded
dc.identifierhttps://arxiv.org/abs/gr-qc/9310026
dc.identifierhttp://arxiv.org/abs/gr-qc/9310026
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/223899
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleDimensional Reduction in Quantum Gravity
dc.typetext

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