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

作者:Fareghbal Reza; Naseh Ali*; Rouhani Shahin
来源:Physics Letters B, 2017, 771: 189-193.
DOI:10.1016/j.physletb.2017.04.040

摘要

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.

  • 出版日期2017-8-10