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Rotating Strings in Confining AdS/CFT Backgrounds
A. Armoni, J. L. F. Barbon, A. C. Petkou
We study semiclassical rotating strings in AdS/CFT backgrounds that exhibit both confinement and finite-size effects. The energy versus spin dispersion relation for short strings i…
Non-protected operators in N=4 SYM and multiparticle states of AdS_5 SUGRA
G. Arutyunov, S. Penati, A. C. Petkou +2
We study a class of non-protected local composite operators which occur in the R symmetry singlet channel of the OPE of two stress-tensor multiplets in {\cal N}=4 SYM. At tree leve…
Orbiting strings in AdS black holes and N=4 SYM at finite temperature
A. Armoni, J. L. F. Barbon, A. C. Petkou
Following Gubser, Klebanov and Polyakov [hep-th/0204051], we study strings in AdS black hole backgrounds. With respect to the pure AdS case, rotating strings are replaced by orbiti…
Boundary multi-trace deformations and OPEs in AdS/CFT correspondence
A. C. Petkou
We argue that multi-trace deformations of the boundary CFT in AdS/CFT correspondence can arise through the OPE of single-trace operators. We work out the example of a scalar field…