CONFINEMENT/DECONFINEMENT TRANSITIONS IN
  GAUGE/GRAVITY CORRESPONDENCE

I will discuss the thermodynamics of the hard wall model, which consists in the introduction of an
infrared cut-off in asymptotically AdS spaces. This is a toy model for confining backgrounds
in the context of the gauge/gravity correspondence.  Holographic renormalization is used and
reproduces the existence of a Hawking Page phase transition recently discussed by Herzog. 
The entropy jumps from N⁰ to N², which reinforces the interpretation of this transition as the
gravity dual of confinement/deconfinement. I will also show how similar results hold for the
phenomenologically motivated soft wall model, underlying the potential universality of the analysis.