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An Exact Holographic RG Flow Between 2d Conformal Fixed Points  Marcus Berg
; Henning Samtleben
;  Date: 
18 Dec 2001  Journal:  JHEP 0205 (2002) 006  Subject:  hepth  Abstract:  We describe a supersymmetric RG flow between conformal fixed points of a twodimensional quantum field theory as an analytic domain wall solution of the threedimensional SO(4) x SO(4) gauged supergravity. Its ultraviolet fixed point is an N=(4,4) superconformal field theory related, through the double D1D5 system, to theories modeling the statistical mechanics of black holes. The flow is driven by a relevant operator of conformal dimension Delta=3/2 which breaks conformal symmetry and breaks supersymmetry down to N=(1,1), and sends the theory to an infrared conformal fixed point with half the central charge. Using the supergravity description, we compute counterterms, onepoint functions and fluctuation equations for inert scalars and vector fields, providing the complete framework to compute twopoint correlation functions of the corresponding operators throughout the flow in the twodimensional quantum field theory. This produces a toy model for flows of N=4 super YangMills theory in 3+1 dimensions, where conformaltoconformal flows have resisted analytical solution.  Source:  arXiv, hepth/0112154  Services:  Forum  Review  PDF  Favorites 


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