Thermal conductivity of one-dimensional spin-1/2 systems
  We analyze the thermal conductivity of frustrated spin-1/2 chains within linear-response theory focusing on its frequency dependence at finite temperatures. Using exact diagonalization, the low-frequency limit of the thermal conductivity is discussed in the high-temperature regime. 
F. Heidrich-Meisner, A. Honecker, D.C. Cabra, and W. Brenig