期刊
PHYSICAL REVIEW A
卷 106, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.106.033104
关键词
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资金
- National Key Research and Development Program of China [2018YFA0306400, 2017YFA0304100]
- National Natural Science Foundation of China [11922411, 12104441, 12134014, 12074194, 12124014]
- China Postdoctoral Science Foundation [2019M651911]
- Leading-edge Technology Program of Jiangsu Natural Science Foundation [BK20192001, BE2022071]
- USTC Research Funds of the Double First-Class Initiative [YD2030002007]
- Fund for Shanxi 1331 Project Key Subjects Construction
- Fundamental Research Funds for the Central Universities
- Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices
Hybrid photon-atom integrated circuits offer great potential for quantum information processing, combining the single-photon nonlinearity and long-lived memory provided by atoms with the passive photonic devices in traditional quantum photonic circuits. This research proposes a stable platform for realizing hybrid photon-atom circuits based on an unsuspended photonic chip, enabling feasible evanescent-field trapping with relatively low laser power.
Hybrid photon-atom integrated circuits, which include photonic microcavities and trapped single neutral atoms in their evanescent field, have great potential for quantum information processing. In this platform, the atoms provide single-photon nonlinearity and long-lived memory, which are complementary to the excellent passive photonic devices in conventional quantum photonic circuits. In this work, we propose a stable platform for realizing hybrid photon-atom circuits based on an unsuspended photonic chip. By introducing high-order modes in the microring, a feasible evanescent-field trap potential well similar to 0.26 mK could be obtained by only 10-mW-level power in the cavity, compared with the 100-mW-level power required in the scheme based on fundamental modes. Based on our scheme, stable single-atom trapping with relatively low laser power is feasible for future studies on high-fidelity quantum gates, single-photon sources, and many-body quantum physics based on a controllable atom array in a microcavity.
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