Decoherence, pointer engineering and quantum state protection
  We present a proposal for protecting states against decoherence, based on the engineering of pointer states. We apply this procedure to the vibrational motion of a trapped ion, and show how to protect qubits, squeezed states, approximate phase eigenstates and superpositions of coherent states. 
A. R. R. Carvalho, P. Milman, R. L. de Matos Filho and L. Davidovich