Supergravity and a Confining Gauge Theory: Duality Cascades and $χ$SB-Resolution of Naked Singularities

Details Supergravity and a Confining Gauge Theory: Duality Cascades and $χ$SB-Resolution of Naked Singularities Supergravity and a Confining Gauge Theory: Duality Cascades and $χ$SB-Resolution of Naked Singularities

2000-07-24

arxiv.org/abs/hep-th/0007191v4

JHEP 0008:052,2000

Physics

High Energy Physics

High Energy Physics - Theory

38 pages; v2: Discussion of screening effects for N/M noninteger added to Secs. 4, 5. v3: Minor corrections to v2 changes (Sec

Scientific paper

10.1088/1126-6708/2000/08/052

We revisit the singular IIB supergravity solution describing M fractional 3-branes on the conifold [hep-th/0002159]. Its 5-form flux decreases, which we explain by showing that the relevant \NN=1 SUSY SU(N+M)xSU(N) gauge theory undergoes repeated Seiberg-duality transformations in which N -> N-M. Far in the IR the gauge theory confines; its chiral symmetry breaking removes the singularity of hep-th/0002159 by deforming the conifold. We propose a non-singular pure-supergravity background dual to the field theory on all scales, with small curvature everywhere if the `t Hooft coupling g_s M is large. In the UV it approaches that of hep-th/0002159, incorporating the logarithmic flow of couplings. In the IR the deformation of the conifold gives a geometrical realization of chiral symmetry breaking and confinement. We suggest that pure \NN=1 Yang-Mills may be dual to strings propagating at small g_s M on a warped deformed conifold. We note also that the standard model itself may lie at the base of a duality cascade.

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