Nonequilibrium thermal entanglement
  Results on heat current, entropy production rate and entanglement are reported for a quantum system coupled to two different temperature heat reservoirs. By applying a temperature gradient, different quantum states can be found with exactly the same amount of entanglement but different purity degrees and heat currents. Furthermore, a nonequilibrium enhancement-suppression transition behavior of the entanglement is identified. 
Luis Quiroga, Ferney J. Rodriguez, Maria E. Ramirez and Roberto Paris