A system consisting of two Josephson qubits coupled through a quantum monochromatic electromagnetic field mode of a resonant tank circuit is studied. It is shown that for certain values of the parameters, it can be used as an entangling gate, which entangles the two qubits whilst the electromagnetic field remains disentangled. The gate operates with decent fidelity to a rootSWAP gate and could form the basis for initial experimental investigations of coupled superconducting qubits. (C) 2003 Elsevier B.V. All rights reserved.

Entangling gates using Josephson circuits coupled through non-classical microwaves

Migliore R;
2003

Abstract

A system consisting of two Josephson qubits coupled through a quantum monochromatic electromagnetic field mode of a resonant tank circuit is studied. It is shown that for certain values of the parameters, it can be used as an entangling gate, which entangles the two qubits whilst the electromagnetic field remains disentangled. The gate operates with decent fidelity to a rootSWAP gate and could form the basis for initial experimental investigations of coupled superconducting qubits. (C) 2003 Elsevier B.V. All rights reserved.
2003
quantum information
quantum computing
entanglement and quantum nonlocality
superconducting quantum interference devices (SQUIDs)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/282308
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