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Proceedings Paper

Quantum control of superconducting phase qubits
Author(s): Philip R. Johnson; Frederick W. Strauch; Alex J. Dragt; James R. Anderson; Christopher J. Lobb; Frederick C. Wellstood
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Paper 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.

Paper Details

Date Published: 24 August 2004
PDF: 10 pages
Proc. SPIE 5436, Quantum Information and Computation II, (24 August 2004); doi: 10.1117/12.542524
Show Author Affiliations
Philip R. Johnson, Univ. of Maryland/College Park (United States)
Frederick W. Strauch, Univ. of Maryland/College Park (United States)
Alex J. Dragt, Univ. of Maryland/College Park (United States)
James R. Anderson, Univ. of Maryland/College Park (United States)
Christopher J. Lobb, Univ. of Maryland/College Park (United States)
Frederick C. Wellstood, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 5436:
Quantum Information and Computation II
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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