Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-07-09
Phys.Rev.D71:066003,2005
Physics
High Energy Physics
High Energy Physics - Theory
24 pages, 1 figure; references added
Scientific paper
10.1103/PhysRevD.71.066003
We propose and study a specific gauge theory dual of the smooth, non-supersymmetric (and apparently stable) Janus solution of Type IIB supergravity found in hep-th/0304129. The dual field theory is N=4 SYM theory on two half-spaces separated by a planar interface with different coupling constants in each half-space. We assume that the position dependent coupling multiplies the operator L' which is the fourth descendent of the primary Tr(X^I X^J) and closely related to the N=4 Lagrangian density. At the classical level supersymmetry is broken explicitly, but SO(3,2) conformal symmetry is preserved. We use conformal perturbation theory to study various correlation functions to first and second order in the discontinuity of g^2_{YM}, confirming quantum level conformal symmetry. Certain quantities such as the vacuum expectation value
Clark Adam B.
Freedman Daniel Z.
Karch Andreas
Schnabl Martin
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