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arXiv · 1411.4631

Kink Collisions in Curved Field Space

Pontus Ahlqvist·Kate Eckerle·Brian Greene
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Abstract

We study bubble universe collisions in the ultrarelativistic limit with the new feature of allowing for nontrivial curvature in field space. We establish a simple geometrical interpretation of such collisions in terms of a double family of field profiles whose tangent vector fields stand in mutual parallel transport. This provides a generalization of the well-known flat field space limit of the free passage approximation. We investigate the limits of this approximation and illustrate our analytical results with a numerical simulations.

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Pontus Ahlqvist, Kate Eckerle, Brian Greene. 2014-11-17. Kink Collisions in Curved Field Space. https://doi.org/10.1007/jhep04(2015)059

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