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2021•Theoretical PhysicsOpen access

Feynman Propagator for Closed Timelike Curves in the Kerr Metric

Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Cd. Universitaria, 04510, Ciudad de México, México, Miguel Socolovsky

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Abstract

We compute the Feynman propagator associated with closed timelike curves in the neighborhood of the ring singularity in the Kerr metric. The propagator is well defined outside r = 0, where it ceases to exist.

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What this paper is about

We compute the Feynman propagator associated with closed timelike curves in the neighborhood of the ring singularity in the Kerr metric. The propagator is well defined outside r = 0, where it ceases to exist.

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Available abstract

We compute the Feynman propagator associated with closed timelike curves in the neighborhood of the ring singularity in the Kerr metric. The propagator is well defined outside r = 0, where it ceases to exist.

Key concepts: Propagator, Feynman diagram, Closed timelike curve, Kerr metric, Metric (unit), Mathematical physics, Singularity, Physics

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