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Identifying Riemannian Singularities with Regular Non-Riemannian Geometry

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Title
Identifying Riemannian Singularities with Regular Non-Riemannian Geometry
Author(s)
Kevin Morand; Jeong-Hyuck Park; Miok Park
Publication Date
2022-01-26
Journal
Physical Review Letters, v.128, no.4
Publisher
American Physical Society
Abstract
Published by the American Physical SocietyAdmitting non-Riemannian geometries, double field theory extends the notion of spacetime beyond the Riemannian paradigm. We identify a class of singular spacetimes known in general relativity with regular non-Riemannian geometries. The former divergences merely correspond to coordinate singularities of the generalized metric for the latter. Computed in the string frame, they feature an impenetrable non-Riemannian sphere outside of which geodesics are complete with no singular deviation. Approaching the non-Riemannian points, particles freeze and strings become (anti)chiral.
URI
https://pr.ibs.re.kr/handle/8788114/11182
DOI
10.1103/PhysRevLett.128.041602
ISSN
0031-9007
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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