Quantum correlations and criticality
An in-house paper from QTeQ on quantum correlations in spin chains has been published in Phys. Rev. B. The work authored by Matthew, Steve, Mariona and Gabriele, deals with discord and its global version in spin-1 systems. The authors show that discord is able to detect a Gaussian phase transition, believed to be of third order and normally quite hard to access. In the case of thermal states, they found that discord for distant spins can be enhanced by increasing the temperature, something quite unusual in the context of quantum correlations and entanglement.