https://scholars.lib.ntu.edu.tw/handle/123456789/626550
標題: | Deterministic Loading of Microwaves onto an Artificial Atom Using a Time-Reversed Waveform | 作者: | Lin, Wei-Ju Lu, Yong Wen, Ping Yi Cheng, Yu-Ting Lee, Ching-Ping Lin, Kuan Ting Chiang, Kuan Hsun Hsieh, Ming Che Chen, Ching-Yeh Chien, Chin-Hsun Lin, Jia Jhan Chen, Jeng-Chung Lin, Yen Hsiang Chuu, Chih-Sung Nori, Franco Frisk Kockum, Anton GUIN-DAR LIN Delsing, Per Hoi, Io-Chun |
關鍵字: | Quantum network; photon loading; superconducting artificial atom; waveguide quantum electrodynamics; Quantum Physics; Quantum Physics | 公開日期: | 26-十月-2022 | 出版社: | AMER CHEMICAL SOC | 卷: | 22 | 期: | 20 | 來源出版物: | Nano letters | 摘要: | Loading quantum information deterministically onto a quantum node is an important step toward a quantum network. Here, we demonstrate that coherent-state microwave photons with an optimal temporal waveform can be efficiently loaded onto a single superconducting artificial atom in a semi-infinite one-dimensional (1D) transmission-line waveguide. Using a weak coherent state (the number of photons (N) contained in the pulse ≪1) with an exponentially rising waveform, whose time constant matches the decoherence time of the artificial atom, we demonstrate a loading efficiency of 94.2% ± 0.7% from 1D semifree space to the artificial atom. The high loading efficiency is due to time-reversal symmetry: the overlap between the incoming wave and the time-reversed emitted wave is up to 97.1% ± 0.4%. Our results open up promising applications in realizing quantum networks based on waveguide quantum electrodynamics. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/626550 | ISSN: | 1530-6984 | DOI: | 10.1021/acs.nanolett.2c02578 |
顯示於: | 物理學系 |
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