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Dimension and Dimensional Reduction in Quantum Gravity

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arxiv 1705.05417 v2 pith:RMFWXVUP submitted 2017-05-15 gr-qc hep-th

Dimension and Dimensional Reduction in Quantum Gravity

classification gr-qc hep-th
keywords dimensionaldimensiongravityquantumreductionveryapproachesbecomes
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A number of very different approaches to quantum gravity contain a common thread, a hint that spacetime at very short distances becomes effectively two dimensional. I review this evidence, starting with a discussion of the physical meaning of "dimension" and concluding with some speculative ideas of what dimensional reduction might mean for physics.

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Cited by 5 Pith papers

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