The N=2 cascade revisited and the enhancon bearings

Abstract

Supergravity backgrounds with varying fluxes generated by fractional branes at non-isolated Calabi-Yau singularities had escaped a precise dual field theory interpretation so far. In the present work, considering the prototypical example of such models, the C*C^2/Z_2 orbifold, we propose a solution for this problem, and show that the known cascading solution corresponds to a vacuum on the Coulomb branch of the corresponding quiver gauge theory involving a sequence of strong coupling transitions reminiscent of the baryonic root of N=2 SQCD. We also find a slight modification of this cascading vacuum which upon mass deformation is expected to flow to the Klebanov-Strassler cascade. Finally, we discuss an infinite class of vacua on the Coulomb branch whose RG flows include infinitely coupled conformal regimes, and explain their gravitational manifestation in terms of new geometric structures that we dub enhancon bearings. Repulson-free backgrounds dual to all the vacua we analyse are explicitly provided.

arXiv comment50 pages, 11 figures; v2: typos corrected; v3: more typos corrected, published version

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Cited by in corpus (17)

• D-brane Charges in Gravitational Duals of 2+1 Dimensional Gauge Theories and Duality Cascades
• Quantum moduli space of Chern-Simons quivers, wrapped D6-branes and AdS4/CFT3
• The Infrared Physics of Bad Theories
• Non-perturbative gauge/gravity correspondence in N=2 theories
• Non-perturbative studies of N=2 conformal quiver gauge theories
• IIA Perspective On Cascading Gauge Theory
• Field Theory Interpretation of N=2 Stringy Instantons
• Resolved gravity duals of $\mathcal{N}=4$ quiver field theories in 2+1 dimensions
• D-instanton probe and the enhançon mechanism from a quiver gauge theory
• Cascades with Adjoint Matter: Adjoint Transitions
• Dynamics of $\mathcal{N}=4$ supersymmetric field theories in 2+1 dimensions and their gravity dual
• Non-perturbative aspects of gauge/gravity duality
• A substrate for brane shells from $T\bar{T}$
• Comments on the N=1 SU(M+p)xSU(p) quiver gauge theory with flavor
• The Octagon at large M
• Holographic backgrounds from D-brane probes
• A Note on the Stringy Embeddings of Certain N = 2 Dualities