Monopole correlation functions and holographic phases of matter in 2+1   dimensions
  The strong coupling dynamics of a 2+1 dimensional U(1) gauge theory coupled to charged matter is holographically modeled via a top-down construction with intersecting D3- and D5-branes. We explore the resulting phase diagram at finite temperature and charge density using correlation functions of monopole operators, dual to magnetically charged particles in the higher-dimensional bulk theory, as a diagnostic. 
T. Alho, V. Giangreco M. Puletti, R. Pourhasan, L. Thorlacius
hep-th