Quantum Non-equilibrium steady states in the XY chain
Dragi Karevski
Université de Nancy
Mon, Jan. 11th 2010, 14:00
Salle Claude Itzykson, Bât. 774, Orme des Merisiers

We discuss the non-equilibrium steady states of the XY quantum chain in the presence of magnetization or energy currents. The current full states are generated by the coupling of the chain with quantum reservoirs. Thanks to the free fermionic structure of the XY chain, the dynamics is exactly solved. In particular, in the special case of repeated interactions reservoirs the correlation matrix is explicitly calculated and we show that the steady state can be described by a generalized Gibbs state.

Contact : Gregoire MISGUICH


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