https://doi.org/10.1140/epjc/s10052-019-7345-8
Regular Article - Theoretical Physics
A holographic study of the a-theorem and RG flow in general quadratic curvature gravity
Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
* e-mail: a-ghodsi@ferdowsi.um.ac.ir
Received:
11
August
2019
Accepted:
23
September
2019
Published online:
4
October
2019
We use the holographic language to show the existence of the a-theorem for even dimensional CFTs, dual to the AdS space in general quadratic curvature gravity. We find the Wess-Zumino action which is originated from the spontaneous breaking of the conformal symmetry in 
, by using a radial cut-off near the AdS boundary. We also study the RG flow and (average) null energy condition in the space of the couplings of theory. In a simple toy model, we find the regions where this holographic RG flow has a monotonic decreasing behavior.
© The Author(s), 2019
