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Entanglement dynamics of a superconducting phase qubit coupled to a two-level system
Sun, Guozhu Zhou, Zhongyuan Mao, Bo Wen, Xueda Wu, Peiheng Han, Siyuan
Sun, Guozhu
Zhou, Zhongyuan
Mao, Bo
Wen, Xueda
Wu, Peiheng
Han, Siyuan
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Abstract
We report the observation and quantitative characterization of driven and spontaneous oscillations of quantum entanglement, as measured by concurrence, in a bipartite system consisting of a macroscopic Josephson phase qubit coupled to a microscopic two-level system. The data clearly show the behavior of entanglement dynamics such as sudden death and revival, and the effect of decoherence and ac driving on entanglement.
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This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevB.86.064502.
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2012-08-01
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American Physical Society
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Guozhu Sun, Zhongyuan Zhou, Bo Mao, Xueda Wen, Peiheng Wu, and Siyuan Han. "Entanglement dynamics of a superconducting phase qubit coupled to a two-level system." Phys. Rev. B 86, 064502 – Published 1 August 2012. http://dx.doi.org/10.1103/PhysRevB.86.064502.