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Paper   IPM / Particles / 14240
School of Particles and Accelerator
  Title:   Aspects of Ultra-Relativistic Field Theories via Flat-space Holography
1.  Reza Fareghbal
2.  Ali Naseh
3.  Shahin Rouhani
  Status:   Published
  Journal: Phys. Lett. B
  Vol.:  770
  Year:  2017
  Supported by:  IPM
We argue that when an ultra-relativistic field theory acquires scale in variance it is automat-ically endowed with conformal invariance, provided that unitarity an d locality hold. Using flat space holography we also 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. Furthermore we obtain the conformal anomaly for such a theory via the flat space holography technique

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