Deterministic Loading of Microwaves onto an Artificial Atom Using a Time-Reversed Waveform

被引：6

作者：

Lin, Wei-Ju ^{[1
]}

Lu, Yong ^{[8
,12
,13
]}

Wen, Ping Yi ^{[2
]}

Cheng, Yu-Ting ^{[1
]}

Lee, Ching-Ping ^{[1
]}

Lin, Kuan Ting ^{[3
]}

Chiang, Kuan Hsun ^{[4
]}

Hsieh, Ming Che ^{[1
]}

Chen, Ching-Yeh ^{[1
]}

Chien, Chin-Hsun ^{[1
]}

Lin, Jia Jhan ^{[1
]}

Chen, Jeng-Chung ^{[1
,5
]}

Lin, Yen Hsiang ^{[1
,5
]}

Chuu, Chih-Sung ^{[1
,5
]}

Nori, Franco ^{[6
,7
]}

Kockum, Anton Frisk ^{[8
]}

Lin, Guin Dar ^{[3
,9
,10
]}

Delsing, Per ^{[8
]}

Hoi, Io-Chun ^{[1
,11
]}

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

[2] Natl Chung Cheng Univ, Dept Phys, Minxiong 621301, Chiayi, Taiwan

[3] Natl Taiwan Univ, Dept Phys, CQSE, Taipei 10617, Taiwan

[4] Natl Cent Univ, Dept Phys, Jhongli 32001, Taiwan

[5] Natl Tsing Hua Univ, Ctr Quantum Technol, Hsinchu 30013, Taiwan

[6] RIKEN Cluster Pioneering Res, Theoret Quantum Phys Lab, Wako, Saitama 3510198, Japan

[7] Univ Michigan, Phys Dept, Ann Arbor, MI 48109 USA

[8] Chalmers Univ Technol, Dept Microtechnol & Nanosci MC2, SE-41296 Gothenburg, Sweden

[9] Natl Ctr Theoret Sci, Phys Div, Taipei 10617, Taiwan

[10] Hon Hai Res Inst, Trapped Ion Quantum Comp Lab, Taipei 11492, Taiwan

[11] City Univ Hong Kong, Dept Phys, Kowloon, Hong Kong 999077, Peoples R China

[12] Univ Stuttgart, Inst Phys 3, IQST, D-70049 Stuttgart, Germany

[13] Univ Stuttgart, Res Ctr SCoPE, D-70049 Stuttgart, Germany

来源：

NANO LETTERS | 2022年 / 22卷 / 20期

基金：

日本学术振兴会; 瑞典研究理事会; 日本科学技术振兴机构;

关键词：

Quantum network; photon loading; waveguide quantum electrodynamics; superconducting artificial atom; QUANTUM; FRONT;

D O I：

10.1021/acs.nanolett.2c02578

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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 MUCH LESS-THAN1) 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.

引用

页码：8137 / 8142

页数：6

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