Quantum impurity models of noisy qubits

Details Quantum impurity models of noisy qubits Quantum impurity models of noisy qubits

2003-05-22

arxiv.org/abs/cond-mat/0305510v2

Phys. Rev. B 69, 153311 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

Latex, 5 pages, no figures

Scientific paper

10.1103/PhysRevB.69.153311

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.

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