Coherent evolution via reservoir driven holonomy
  We show that in the limit of strongly interacting environment a system initially prepared in a Decoherence Free Subspace (DFS) coherently evolves in time, adiabatically following the changes of the DFS. If the reservoir cyclicly evolves in time, the DFS states acquire an holonomy. 
Angelo Carollo, Marcelo Franca Santos and Vlatko Vedral