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Single-photon-driven high-order sideband transitions in an ultrastrongly coupled circuit-quantum-electrodynamics system
Chen, Zhen Wang, Yimin Li, Tiefu Tian, Lin Qiu, Yueyin Inomata, Kunihiro Yoshihara, Fumiki Han, Siyuan Nori, Franco Tsai, J. S.
Chen, Zhen
Wang, Yimin
Li, Tiefu
Tian, Lin
Qiu, Yueyin
Inomata, Kunihiro
Yoshihara, Fumiki
Han, Siyuan
Nori, Franco
Tsai, J. S.
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Abstract
We report the experimental observation of high-order sideband transitions at the single-photon level in a quantum circuit system of a flux qubit ultrastrongly coupled to a coplanar waveguide resonator. With the coupling strength reaching 10% of the resonator's fundamental frequency, we obtain clear signatures of higher order red-sideband and first-order blue-sideband transitions, which are mainly due to the ultrastrong Rabi coupling. Our observation advances the understanding of ultrastrongly coupled systems and paves the way to study high-order processes in the quantum Rabi model at the single-photon level.
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Date
2017-07-19
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American Physical Society
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Keywords
Cavity quantum electrodynamics, Hybrid quantum systems, Nonlinear waveguides, Superconducting qubits
Citation
Chen, Z., (2017) Single-photon-driven high-order sideband transitions in an ultrastrongly coupled circuit-quantum-electrodynamics system, Physical Review A 96:1, https://doi.org/10.1103/PhysRevA.96.012325