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arXiv · 1004.4664

Quantum Dynamics of a Microwave Driven Superconducting Phase Qubit Coupled to a Two-Level System

Guozhu Sun·Xueda Wen·Bo Mao·Zhongyuan Zhou·Yang Yu·Peiheng Wu·Siyuan Han
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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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Guozhu Sun, Xueda Wen, Bo Mao, Zhongyuan Zhou, Yang Yu, Peiheng Wu, Siyuan Han. 2010-10-06. Quantum Dynamics of a Microwave Driven Superconducting Phase Qubit Coupled to a Two-Level System. https://doi.org/10.1103/physrevb.82.132501

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