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Exact S-matrices for AdS_3/CFT_2
Changrim Ahn, Diego Bombardelli
We propose exact -matrices for the AdS_3/CFT_2 duality between Type IIB strings on AdS_3 x S^3 x M_4 with M_4=S^3 x S^1 or T^4 and the corresponding two-dimensional conformal fi…
Worldsheet S-matrix of beta-deformed SYM
Changrim Ahn, Minkyoo Kim, Bum-Hoon Lee
We compute perturbative worldsheet S-matrix of beta-deformed AdS/CFT in the strong and weak `t Hooft coupling limit to compare with exact S-matrix. For the purpose we take near BMN…
OPE in planar QCD from integrability
Changrim Ahn, Omar Foda, Rafael I. Nepomechie
We consider the operator product expansion of local single-trace operators composed of the self-dual components of the field strength tensor in planar QCD. Using the integrability…
Finite-size effects of beta-deformed AdS_5/CFT_4 at strong coupling
Changrim Ahn, Diego Bombardelli, Minkyoo Kim
We compute both classical and quantum finite-size corrections at leading order in the strong coupling limit for the (dyonic) giant magnon in the Lunin-Maldacena background. Based o…