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Title: Dimension and dimensional reduction in quantum gravity


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. Here, 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.

  1. Univ. of California, Davis, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
OSTI Identifier:
Grant/Contract Number:  
Resource Type:
Accepted Manuscript
Journal Name:
Classical and Quantum Gravity
Additional Journal Information:
Journal Volume: 34; Journal Issue: 19; Journal ID: ISSN 0264-9381
IOP Publishing
Country of Publication:
United States
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; quantum gravity; dimensional reduction

Citation Formats

Carlip, S. Dimension and dimensional reduction in quantum gravity. United States: N. p., 2017. Web. doi:10.1088/1361-6382/aa8535.
Carlip, S. Dimension and dimensional reduction in quantum gravity. United States. doi:
Carlip, S. Mon . "Dimension and dimensional reduction in quantum gravity". United States. doi:
title = {Dimension and dimensional reduction in quantum gravity},
author = {Carlip, S.},
abstractNote = {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. Here, 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.},
doi = {10.1088/1361-6382/aa8535},
journal = {Classical and Quantum Gravity},
number = 19,
volume = 34,
place = {United States},
year = {2017},
month = {9}

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