On a quantum phase transition in a steady state out of equilibrium

  • Walter H. Aschbacher
  • Published 2015
Within the rigorous axiomatic framework for the description of quantum mechanical systems with a large number of degrees of freedom, we show that the nonequilibrium steady state, constructed in the quasifree fermionic system corresponding to the isotropic XY chain in which a finite sample, coupled to two thermal reservoirs at different temperatures, is… CONTINUE READING