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Published February 1, 2020 | Submitted
Journal Article Open

Why does D = 4, rather than more (or less)? An Orwellian explanation

Deser, S. ORCID icon

Abstract

Two simple, if draconian, assumptions about classical gravity actions fix space–time's dimension at D = 4.

Additional Information

© 2020 The Author(s). Published by the Royal Society. Manuscript received 25/09/2019; Manuscript accepted 24/12/2019; Published online 05/02/2020; Published in print 02/2020. For Mike Duff, friend, collaborator, eminent theoretician, peerless Defender of the Faith, on his 70th. One contribution to a special feature 'Quantum gravity, branes and M-theory' dedicated to Michael J. Duff on the occasion of his 70th birthday organized by Leron Borsten, Alessio Marrani, Christopher Pope and Kellogg Stelle. I thank Bayram Tekin for useful correspondence and J. Franklin for great Tex help. Data accessibility: This article has no additional data. Authors' contributions: All authors contributed to the writing and revision of the manuscript. I declare I have no competing interest. The work of S.D. was supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award no. de-sc0011632.

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August 22, 2023
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October 18, 2023