Worldlines as Wilson Lines

Details Worldlines as Wilson Lines Worldlines as Wilson Lines

2008-04-28

arxiv.org/abs/0804.4450v2

Phys.Rev.D78:064066,2008

Physics

High Energy Physics

High Energy Physics - Theory

20 pages

Scientific paper

10.1103/PhysRevD.78.064066

Gravitational theories do not admit gauge invariant local operators. We study the limits under which there exists a quasi-local description for a class of non-local gravitational observables where a sum over worldlines plays the role of the Wilson line for gauge theory observables. We study non-local corrections to the local description and circumstances where these corrections become large. We find that these operators are quasi-local in flat space and AdS, but fail to be quasi-local in de Sitter space.

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