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Quantum dynamics of a microwave driven superconducting phase qubit coupled to a two-level system
Sun, Guozhu Wen, Xueda Mao, Bo Zhou, Zhongyuan Yu, Yang Wu, Peiheng Han, Siyuan
Sun, Guozhu
Wen, Xueda
Mao, Bo
Zhou, Zhongyuan
Yu, Yang
Wu, Peiheng
Han, Siyuan
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Abstract
We present an analytical and comprehensive description of the quantum dynamics of a microwave resonantly driven superconducting phase qubit coupled to a microscopic two-level system (TLS), covering a wide range of the external microwave field strength. Our model predicts several interesting phenomena in such an ac driven four-level bipartite system including anomalous Rabi oscillations, high-contrast beatings of Rabi oscillations, and extraordinary two-photon transitions. Our experimental results in a coupled qubit-TLS system agree quantitatively very well with the predictions of the theoretical model.
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This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevB.82.132501.
Date
2010-10-01
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American Physical Society
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Guozhu Sun, Xueda Wen, Bo Mao, Zhongyuan Zhou, Yang Yu, Peiheng Wu, and Siyuan Han. "Quantum dynamics of a microwave driven superconducting phase qubit coupled to a two-level system." Phys. Rev. B 82, 132501 – Published 1 October 2010. http://dx.doi.org/10.1103/PhysRevB.82.132501.