Abstract
Utilizing AdS/CFT correspondence in M-theory, an example of interacting d=3 conformal field theories and renormalization group flow between them is presented. Near-horizon geometry of N coincident M2-branes located on a conical singularity on eight-dimensional hyper-Kähler manifold or manifold with Spin(7) holonomy is, in large- N limit, AdS 4× X 7, where X 7 is seven-sphere with squashing. Deformation from round S 7 to squashed one is known to lead to spontaneous breaking of N=8 local supersymmetry in gauged AdS 4 supergravity to N=1,0 . Via AdS/CFT correspondence, it is interpreted as renormalization group flow from SO(5)× SO(3) symmetric UV fixed point to SO(8) symmetric IR fixed point. Evidence for the interpretation is found both from the supergravity scalar potential and from the existence of interpolating static domain-wall thereof, and from the conformal dimensions of the relevant chiral primary operator at each fixed point.
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