Cold bosons in the Landauer setup
  We consider one dimensional potential trap that connects two reservoirs containing cold Bose atoms. The thermal current and single-particle bosonic Green functions are calculated under non-equilibrium conditions. The bosonic statistics leads to Luttinger liquid state with non-linear spectrum of collective modes. This results in suppression of thermal current at low temperatures and affects the single-particle Green functions. 
D. B. Gutman, Y. Gefen, and A. D. Mirlin
cond-mat.quant-gas cond-mat.mes-hall