On the glueball spectrum in the Klebanov-Strassler model

Calculable mass hierarchies and a light dilaton from gravity duals

“…The latter provides a technical advantage, as it allows to perform a conceptually simple (although numerically challenging) calculation. The dilaton is parametrically light because the theory admits a classical moduli space along a flat direction that is lifted only by controllable quantum effects (the running of the couplings), with the quantum moduli space still non-trivial [23], and hence there are condensates that are parametrically larger than the scale introduced by the explicit breaking of scale invariance due to the anomaly. Whether such phenomena arise in non-supersymmetric theories is an open problem.…”

“…The moduli space of the theory contains a baryonic branch. Following [23,25], we illustrate some of its properties with tree-level arguments. For a fixed choice of k = q, the F-term equations are solved by B i = 0.…”

“…• Supersymmetry allows to infer that the gaugino condensate forms, breaking Z 2N → Z 2 at scale Λ, and to classify the quantum moduli space [23], but not to calculate the spectrum of bound states.…”

Integrable fishnet from γ-deformed N=2 quivers

“…The β-function (14) is quadratic as predicted in [47][48][49] for any large-N CFT with a non-running single-trace coupling and a running double-trace one. In general,…”

On a CFT limit of planar γ i -deformedN=4SYM theory

“…Likewise, a composite operator O ii , O 12 12 , O or a complex conjugate thereof can occur in the OPE of two single-trace operators whose total charge matches its charge. Via the anomalous dimension for that operator taken from (5), such an OPE is then sensitive to the respective β-function. The planar correlation functions of the field theory are hence widely affected by the double-trace couplings (3).…”