Zhou, ZhongyuanChu, Shih-IHan, Siyuan2014-12-042014-12-042002-08-20Zhou, Zhongyuan., Chu, Shih-I., Han, Siyuan. "Quantum computing with superconducting devices: A three-level SQUID qubit." Phys. Rev. B 66, 054527 – Published 20 August 2002. http://dx.doi.org/10.1103/PhysRevB.66.054527.https://hdl.handle.net/1808/16033This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevB.66.054527.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.Article10.1103/PhysRevB.66.054527openAccess