Quantum computing with superconducting devices: A three-level SQUID qubit
Zhongyuan Zhou, Shih‐I Chu, Siyuan Han · Physical review. B, Condensed matter · 2002
A three-level scheme for implementing single-qubit operations in superconducting quantum interference devices is proposed and analyzed. We show that, compared with the conventional two-level scheme, the proposed three-level qubit scheme is much faster and has a much lower intrinsic error rate.