Holographic Conformal Window - A Bottom Up Approach

Understand

We propose a five-dimensional framework for modeling the background geometry associated to ordinary Yang-Mills (YM) as well as to nonsupersymmetric gauge theories possessing an infrared fixed point with fermions in various representations of the underlying gauge group.

• The model is based on the improved holographic approach, on the string theory side, and on the conjectured all-orders beta function for the gauge theory one.
• We first analyze the YM gauge theory.
• We then investigate the effects of adding flavors and show that, in the holographic description of the conformal window, the geometry becomes AdS when approaching the ultraviolet and the infrared regimes.