  We demonstrate that the problem of coupled two-level systems ("qubits") which
are also subject to a generic (sub)Ohmic dissipative environment belongs to the
same class of models as those describing (non)magnetic impurities embedded in
strongly correlated systems. A further insight into the generalized single- and
two-impurity Bose/Fermi Kondo models enables one to make specific
recommendations towards a systematic engineering of highly coherent multi-qubit
assemblies for potential applications in quantum information processing.
