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Landau-Zener-Stückelberg interference of microwave-dressed states of a superconducting phase qubit
Sun, Guozhu Wen, Xueda Mao, Bo Yu, Yang Chen, Jian Xu, Weiwei Kang, Lin Wu, Peiheng Han, Siyuan
Sun, Guozhu
Wen, Xueda
Mao, Bo
Yu, Yang
Chen, Jian
Xu, Weiwei
Kang, Lin
Wu, Peiheng
Han, Siyuan
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Abstract
We present the observation of Landau-Zener-Stückelberg (LZS) interference of the dressed states arising from an artificial atom, a superconducting phase qubit, interacting with a microwave field. The dependence of LZS interference fringes on various external parameters and the initial state of the qubit agrees quantitatively very well with the theoretical prediction. Such LZS interferometry between the dressed states enables us to control the quantum states of a tetrapartite solid-state system with ease, demonstrating the feasibility of implementing efficient multipartite quantum logic gates with this unique approach.
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This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevB.83.180507.
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2011-05-26
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American Physical Society
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Guozhu Sun, Xueda Wen, Bo Mao, Yang Yu, Jian Chen, Weiwei Xu, Lin Kang, Peiheng Wu, and Siyuan Han. "Landau-Zener-Stückelberg interference of microwave-dressed states of a superconducting phase qubit." Phys. Rev. B 83, 180507(R) – Published 26 May 2011. http://dx.doi.org/10.1103/PhysRevB.83.180507.