Dissipative spin-boson model and Kondo effect in low dimensional quantum   gases
  We show that ultracold atoms confined in a quasi-1d trap can be used to study the dissipative spin-boson model with {\it tunable} tunneling splitting and strength of dissipation. It is shown that with realistic parameters this system allows to study the crossover from coherent Rabi dynamics to incoherent tunneling. 
A. Recati, P.O. Fedichev, W. Zwerger, J. von Delft, and P. Zoller