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The Smeared Null Energy Condition

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arxiv 1807.03808 v4 pith:TVGSTCYW submitted 2018-07-10 hep-th

Ben Freivogel , Dimitrios Krommydas This is my paper · ORCID
classification hep-th
keywords energyboundnullnegativeregionsalongaveragebelieve
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We propose a new bound on the average null energy along a finite portion of a null geodesic. We believe our bound is valid on scales small compared to the radius of curvature in any quantum field theory that is consistently coupled to gravity. If correct, our bound implies that regions of negative energy density are never strongly gravitating, and that isolated regions of negative energy are forbidden.

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  1. How negative can null energy be in large N CFTs?

    hep-th 2024-12 conditional novelty 6.0 of 10

    In large N conformal field theories, states built from light scalar operators or stress tensors can have negative smeared null energy, but the negative amount is bounded by a scale set by the central charge.

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