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Visualizing designer quantum states in stable macrocycle quantum corrals

Author

Listed:
  • Xinnan Peng

    (National University of Singapore)

  • Harshitra Mahalingam

    (Yale-NUS College)

  • Shaoqiang Dong

    (National University of Singapore)

  • Pingo Mutombo

    (Czech Academy of Sciences)

  • Jie Su

    (National University of Singapore)

  • Mykola Telychko

    (National University of Singapore)

  • Shaotang Song

    (National University of Singapore)

  • Pin Lyu

    (National University of Singapore)

  • Pei Wen Ng

    (National University of Singapore)

  • Jishan Wu

    (National University of Singapore)

  • Pavel Jelínek

    (Czech Academy of Sciences
    Palacký University)

  • Chunyan Chi

    (National University of Singapore)

  • Aleksandr Rodin

    (Yale-NUS College
    National University of Singapore)

  • Jiong Lu

    (National University of Singapore
    National University of Singapore)

Abstract

Creating atomically precise quantum architectures with high digital fidelity and desired quantum states is an important goal in a new era of quantum technology. The strategy of creating these quantum nanostructures mainly relies on atom-by-atom, molecule-by-molecule manipulation or molecular assembly through non-covalent interactions, which thus lack sufficient chemical robustness required for on-chip quantum device operation at elevated temperature. Here, we report a bottom-up synthesis of covalently linked organic quantum corrals (OQCs) with atomic precision to induce the formation of topology-controlled quantum resonance states, arising from a collective interference of scattered electron waves inside the quantum nanocavities. Individual OQCs host a series of atomic orbital-like resonance states whose orbital hybridization into artificial homo-diatomic and hetero-diatomic molecular-like resonance states can be constructed in Cassini oval-shaped OQCs with desired topologies corroborated by joint ab initio and analytic calculations. Our studies open up a new avenue to fabricate covalently linked large-sized OQCs with atomic precision to engineer desired quantum states with high chemical robustness and digital fidelity for future practical applications.

Suggested Citation

  • Xinnan Peng & Harshitra Mahalingam & Shaoqiang Dong & Pingo Mutombo & Jie Su & Mykola Telychko & Shaotang Song & Pin Lyu & Pei Wen Ng & Jishan Wu & Pavel Jelínek & Chunyan Chi & Aleksandr Rodin & Jion, 2021. "Visualizing designer quantum states in stable macrocycle quantum corrals," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26198-8
    DOI: 10.1038/s41467-021-26198-8
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    References listed on IDEAS

    as
    1. Yuqiang Zheng & Can Li & Chengyang Xu & Doreen Beyer & Xinlei Yue & Yan Zhao & Guanyong Wang & Dandan Guan & Yaoyi Li & Hao Zheng & Canhua Liu & Junzhi Liu & Xiaoqun Wang & Weidong Luo & Xinliang Feng, 2020. "Designer spin order in diradical nanographenes," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
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