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arXiv · 1612.00427

DBI from Gravity

Travis Maxfield·Savdeep Sethi
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Abstract

We study the dynamics of gravitational lumps. By a lump, we mean a metric configuration that asymptotes to a flat space-time. Such lumps emerge in string theory as strong coupling descriptions of D-branes. We provide a physical argument that the broken global symmetries of such a background, generated by certain large diffeomorphisms, constrain the dynamics of localized modes. These modes include the translation zero modes and any localized tensor modes. The constraints we find are gravitational analogues of those found in brane physics. For the example of a Taub-NUT metric in eleven-dimensional supergravity, we argue that a critical value for the electric field arises from standard gravity without higher derivative interactions.

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Travis Maxfield, Savdeep Sethi. 2016-12-01. DBI from Gravity. https://doi.org/10.1007/jhep02(2017)108

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