Aspects of ultra-relativistic field theories via flat-space holography

Recently it was proposed that asymptotically flat spacetimes have a holographic dual which is an ultra-relativistic conformal field theory. In this paper, we obtain the conformal anomaly for such a theory via the flat-space holography technique. Furthermore, using flat-space holography we obtain a C...

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Bibliographic Details
Published in:Physics letters. B 2017-08, Vol.771, p.189-193
Main Authors: Fareghbal, Reza, Naseh, Ali, Rouhani, Shahin
Format: Article
Language:English
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Summary:Recently it was proposed that asymptotically flat spacetimes have a holographic dual which is an ultra-relativistic conformal field theory. In this paper, we obtain the conformal anomaly for such a theory via the flat-space holography technique. Furthermore, using flat-space holography we obtain a C-function for this theory which is monotonically decreasing from the UV to the IR by employing the null energy condition in the bulk.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2017.04.040