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arXiv · 2501.13197

An unusual BPS equation

Constantin Bachas·Lorenzo Bianchi·Zhongwu Chen
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Abstract

We prove a conjectured relation between the energy-momentum and the displacement norm of superconformal defects. The proof completes earlier results, and shows that supersymmetry identifies two natural notions of brane tension in Anti-de Sitter gravity. As a byproduct we show that a modification of the energy-momentum tensor that removes the stress of static superconformal defects, ensures also that the radiation these emit obeys the Null Energy Condition. This sheds new light on the radiation-reaction problem for moving charges.

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Constantin Bachas, Lorenzo Bianchi, Zhongwu Chen. 2025-01-22. An unusual BPS equation. https://arxiv.org/abs/2501.13197

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