Quantum control of superconducting phase qubits

Philip R. Johnson; Frederick W. Strauch; Alex J. Dragt; James R. Anderson; Christopher J. Lobb; Frederick C. Wellstood

doi:10.1117/12.542524

24 August 2004 Quantum control of superconducting phase qubits

Philip R. Johnson, Frederick W. Strauch, Alex J. Dragt, James R. Anderson, Christopher J. Lobb, Frederick C. Wellstood

Proceedings Volume 5436, Quantum Information and Computation II; (2004) https://doi.org/10.1117/12.542524
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

We describe quantum control for implementing fast universal quantum gates using Josephson junction-based phase qubits. We have determined the effects of quantum tunneling and leakage on the gate fidelity by performing nonperturbative simulations of the Schrodinger equation. Phase qubits are seen to have many attractive features, and an experimental demonstration of a simple phase-qubit quantum gate should be possible in the near future.

Citation Download Citation

Philip R. Johnson, Frederick W. Strauch, Alex J. Dragt, James R. Anderson, Christopher J. Lobb, and Frederick C. Wellstood "Quantum control of superconducting phase qubits", Proc. SPIE 5436, Quantum Information and Computation II, (24 August 2004); https://doi.org/10.1117/12.542524

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