Microwave-induced coupling of superconducting qubits

Details Microwave-induced coupling of superconducting qubits Microwave-induced coupling of superconducting qubits

2008-01-29

arxiv.org/abs/0801.4541v2

Phys. Rev. B 74, 140504(R) (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

6 pages, 3 figures

Scientific paper

10.1103/PhysRevB.74.140504

We investigate the quantum dynamics of a system of two coupled superconducting qubits under microwave irradiation. We find that, with the qubits operated at the charge co-degeneracy point, the quantum evolution of the system can be described by a new effective Hamiltonian which has the form of two coupled qubits with tunable coupling between them. This Hamiltonian can be used for experimental tests on macroscopic entanglement and for implementing quantum gates.

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