Phase transitions, entanglement and quantum noise interferometry in cold   atoms
  We show that entanglement monotones can characterize the pronounced enhancement of entanglement at a quantum phase transition if they are sensitive to long-range high order correlations. These monotones are found to develop a sharp peak at the critical point and to exhibit universal scaling. We demonstrate that similar features are shared by noise correlations and verify that these experimentally accessible quantities indeed encode entanglement information and probe separability. 
Florian Mintert, Ana Maria Rey, Indubala I. Satija, Charles W. Clark