Speaker
Jesus Cruz
(APCTP)
Description
The difficulty of describing the phase diagram of QCD at low temperatures and high-
density regime has been tackled by the AdS/CFT correspondence by several models. Here
we propose a study of the phase diagram based in the non-perturbative V-QCD model,
in which the agreement at low density is made by taking input from lattice field theory
results. We calculate the fluctuation equations for the helicity 0 ,1 and 2 sectors and locate
the quasinormal modes to see whether an instability related with the bulk AdS 2 geometry
dual to the very low temperature regime is present. We are motivated for the fact that it
is known that such AdS 2 solutions are highly unstable as AdS 2 has a rather restrictive BF
bound.