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arXiv · 2004.07531

Simultaneous excitation of two noninteracting atoms with time-frequency correlated photon pairs in a superconducting circuit

Wenhui Ren·Wuxin Liu·Chao Song·Hekang Li·Qiujiang Guo·Zhen Wang·Dongning Zheng·Girish S. Agarwal·Marlan O. Scully·Shi-Yao Zhu·H. Wang·Da-Wei Wang
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Abstract

Here we report the first observation of simultaneous excitation of two noninteracting atoms by a pair of time-frequency correlated photons in a superconducting circuit. The strong coupling regime of this process enables the synthesis of a three-body interaction Hamiltonian, which allows the generation of the tripartite Greenberger-Horne-Zeilinger state in a single step with a fidelity as high as 0.95. We further demonstrate the quantum Zeno effect of inhibiting the simultaneous two-atom excitation by continuously measuring whether the first photon is emitted. This work provides a new route in synthesizing many-body interaction Hamiltonian and coherent control of entanglement.

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Wenhui Ren, Wuxin Liu, Chao Song, Hekang Li, Qiujiang Guo, Zhen Wang, Dongning Zheng, Girish S. Agarwal, Marlan O. Scully, Shi-Yao Zhu, H. Wang, Da-Wei Wang. 2020-04-16. Simultaneous excitation of two noninteracting atoms with time-frequency correlated photon pairs in a superconducting circuit. https://doi.org/10.1103/physrevlett.125.133601

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