Aspects of Ultra-Relativistic Field Theories via Flat-space Holography (1511.01774v3)

Published 5 Nov 2015 in hep-th

Abstract: 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.

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