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arXiv · hep-th/9210036

Geometric Gravitational Forces on Particles Moving in a Line

Daniel Cangemi·Roman Jackiw
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Abstract

In two-dimensional space-time, point particles can experience a geometric, dimension-specific gravity force, which modifies the usual geodesic equation of motion and provides a link between the cosmological constant and the vacuum $θ$-angle. The description of such forces fits naturally into a gauge theory of gravity based on the extended Poincaré group, {\it i.e.\/} ``string-inspired'' dilaton gravity.

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Daniel Cangemi, Roman Jackiw. 1992-10-07. Geometric Gravitational Forces on Particles Moving in a Line. https://doi.org/10.1016/0370-2693(93)90878-l

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