Spontaneous Dimensional Reduction in Short-Distance Quantum Gravity?
arXiv:0909.3329 · doi:10.1063/1.3284402
Abstract
Several lines of evidence suggest that quantum gravity at very short distances may behave effectively as a two-dimensional theory. I summarize these hints, and offer an additional argument based on the strong-coupling limit of the Wheeler-DeWitt equation. The resulting scenario suggests a novel approach to quantum gravity at the Planck scale.
arXiv comment9 pages, aip macros. Invited talk at the XXV Max Born Symposium, "Physics at the Planck scale," Wroclaw (Poland), June 29--July 3, 2009; to appear in the Proceedings
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