202 citations · 1.2k across the 24 of their papers we have counts for
3 papers · 2 filters
Decoherence induced by interacting quantum spin baths
Davide Rossini, Tommaso Calarco, Vittorio Giovannetti +2
We study decoherence induced on a two-level system coupled to a one-dimensional quantum spin chain. We consider the cases where the dynamics of the chain is determined by the Ising…
Robust optimal quantum gates for Josephson charge qubits
Simone Montangero, Tommaso Calarco, Rosario Fazio
Quantum optimal control theory allows to design accurate quantum gates. We employ it to design high-fidelity two-bit gates for Josephson charge qubits in the presence of both leaka…
Decoherence by engineered quantum baths
Davide Rossini, Tommaso Calarco, Vittorio Giovannetti +2
We introduce, and determine decoherence for, a wide class of non-trivial quantum spin baths which embrace Ising, XY and Heisenberg universality classes coupled to a two-level syste…