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Solid-State Quantum Communication With Josephson Arrays
Alessandro Romito, Rosario Fazio, C. Bruder
Josephson junction arrays can be used as quantum channels to transfer quantum information between distant sites. In this work we discuss simple protocols to realize state transfer…
Dynamical Imperfections in quantum computers
Paolo Facchi, Simone Montangero, Rosario Fazio +1
We study the effects of dynamical imperfections in quantum computers. By considering an explicit example, we identify different regimes ranging from the low-frequency case, where t…
Information-capacity description of spin-chain correlations
Vittorio Giovannetti, Rosario Fazio
Information capacities achievable in the multi-parallel-use scenarios are employed to characterize the quantum correlations in unmodulated spin chains. By studying the qubit amplit…
Quantum cloning in spin networks
G. De Chiara, R. Fazio, C. Macchiavello +2
We introduce an approach to quantum cloning based on spin networks and we demonstrate that phase covariant cloning can be realized using no external control but only with a proper…