Martin Schvellinger

RG flows from spin(7), CY 4 fold and HK manifolds to AdS, Penrose limits and pp waves

We obtain explicit realizations of holographic renormalization group (RG) flows from M-theory, from E2,1 × Spin(7) at UV to AdS4 × 7 (squashed S7) at IR, from E2,1 × CY4 at UV to AdS4 × Q1,1,1 at IR, and from E2,1 × HK (hyperKahler) at UV to AdS4 × N0,1,0 at IR. The dual type-IIA string theory configurations correspond to D2-D6 brane systems where D6-branes wrap supersymmetric four-cycles. We also study the Penrose limits and obtain the pp-wave backgrounds for the above configurations. Besides, we study some examples of non-supersymmetric and supersymmetric flows in five-dimensional gauge theories.

On the Delta I = 1/2 rule in holographic QCD

We study the

Spinning and rotating strings for = 1 SYM theory and brane constructions

\Delta I = 1/2

Warped deformed throats have faster (electroweak) phase transitions

rule for kaon decays and the

Four-point functions and Kaon decays in a minimal AdS/QCD model

B_K

Glueballs, symmetry breaking and axionic strings in non-supersymmetric deformations of the Klebanov-Strassler background

parameter for

Brane worlds, string cosmology, and AdS / CFT

K^0 - {\bar K}^0

Holographic renormalization group flow, Wilson loops and field-theory β-functions

mixing in a dual 5-dimensional holographic QCD model. We perform, in the chiral limit, computations of the relevant four-point current-current correlators, which depend upon self-interactions among the 5D bulk fields. Spontaneous chiral symmetry breaking (

Multibaryons as symmetric multi-Skyrmions

\chi

Supergravity duals of gauge theories from F(4) gauged supergravity in six dimensions

SB) is realized through boundary conditions on the bulk fields. Numerical results are analyzed in comparison with QCD, chiral perturbation theory (