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Quantum frontiers最新文献

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A fully-connected three-user quantum hyperentangled network 一个完全连接的三用户量子超融合网络
Quantum frontiers
Pub Date : 2023-05-24 DOI: 10.1007/s44214-023-00030-4
Yiwen Huang, Yuanhua Li, Zhantong Qi, Yilin Yang, Yuanlin Zheng, Xianfeng Chen
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引用次数: 0
Surface structure and multigap superconductivity of V3Si (111) revealed by scanning tunneling microscopy 扫描隧道显微镜研究V3Si(111)的表面结构和多间隙超导性
Quantum frontiers
Pub Date : 2023-04-18 DOI: 10.1007/s44214-023-00028-y
Shuyue Ding, Dongming Zhao, Tianxing Jiang, Haitao Wang, Donglai Feng, Tong Zhang
{"title":"Surface structure and multigap superconductivity of V3Si (111) revealed by scanning tunneling microscopy","authors":"Shuyue Ding, Dongming Zhao, Tianxing Jiang, Haitao Wang, Donglai Feng, Tong Zhang","doi":"10.1007/s44214-023-00028-y","DOIUrl":"https://doi.org/10.1007/s44214-023-00028-y","url":null,"abstract":"","PeriodicalId":74629,"journal":{"name":"Quantum frontiers","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42103499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Recent progresses on graphene-based artificial nanostructures: a perspective from scanning tunneling microscopy 石墨烯基人工纳米结构的研究进展：从扫描隧道显微镜的角度
Quantum frontiers
Pub Date : 2023-04-07 DOI: 10.1007/s44214-023-00027-z
Yi-Wen Liu, Lin He
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引用次数: 1
Compact localized boundary states in a quasi-1D electronic diamond-necklace chain. 准一维电子钻石项链链中的紧致局域边界态。
Quantum frontiers
Pub Date : 2023-01-01 DOI: 10.1007/s44214-023-00026-0
S N Kempkes, P Capiod, S Ismaili, J Mulkens, L Eek, I Swart, C Morais Smith

Zero-energy modes localized at the ends of one-dimensional (1D) wires hold great potential as qubits for fault-tolerant quantum computing. However, all the candidates known to date exhibit a wave function that decays exponentially into the bulk and hybridizes with other nearby zero-modes, thus hampering their use for braiding operations. Here, we show that a quasi-1D diamond-necklace chain exhibits an unforeseen type of robust boundary state, namely compact localized zero-energy modes that do not decay into the bulk. We find that this state emerges due to the presence of a latent symmetry in the system. We experimentally realize the diamond-necklace chain in an electronic quantum simulator setup.

定位于一维(1D)导线末端的零能量模式作为容错量子计算的量子比特具有巨大的潜力。然而，迄今为止已知的所有候选者都表现出一种波函数，这种波函数呈指数衰减，并与附近的其他零模式杂化，从而阻碍了它们用于编织操作。在这里，我们证明了准一维钻石项链链表现出一种不可预见的鲁棒边界状态，即紧凑的局域零能量模式，不会衰变到体中。我们发现这种状态的出现是由于系统中潜在对称性的存在。我们在电子量子模拟装置中实验实现了钻石项链链。
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引用次数: 5
Topologically enhanced nonlinear optical response of graphene nanoribbon heterojunctions. 石墨烯纳米带异质结的拓扑增强非线性光学响应。
Quantum frontiers
Pub Date : 2023-01-01 Epub Date: 2023-09-27 DOI: 10.1007/s44214-023-00036-y
Hanying Deng, Zhihao Qu, Yingji He, Changming Huang, Nicolae C Panoiu, Fangwei Ye

We study the nonlinear optical properties of heterojunctions made of graphene nanoribbons (GNRs) consisting of two segments with either the same or different topological properties. By utilizing a quantum mechanical approach that incorporates distant-neighbor interactions, we demonstrate that the presence of topological interface states significantly enhances the second- and third-order nonlinear optical response of GNR heterojunctions that are created by merging two topologically inequivalent GNRs. Specifically, GNR heterojunctions with topological interface states display third-order harmonic hyperpolarizabilities that are more than two orders of magnitude larger than those of their similarly sized counterparts without topological interface states, whereas the second-order harmonic hyperpolarizabilities exhibit a more than ten-fold contrast between heterojunctions with and without topological interface states. Additionally, we find that the topological state at the interface between two topologically distinct GNRs can induce a noticeable red-shift of the quantum plasmon frequency of the heterojunctions. Our results reveal a general and profound connection between the existence of topological states and an enhanced nonlinear optical response of graphene nanostructures and possible other photonic systems.

我们研究了由石墨烯纳米带（GNRs）制成的异质结的非线性光学性质，该异质结由具有相同或不同拓扑性质的两个片段组成。通过利用包含远邻居相互作用的量子力学方法，我们证明了拓扑界面态的存在显著增强了GNR异质结的二阶和三阶非线性光学响应，这些异质结是通过合并两个拓扑不等价的GNR而产生的。具体而言，具有拓扑界面态的GNR异质结显示出三阶谐波超极化率，其比没有拓扑界面状态的类似尺寸的异质结大两个数量级以上，而二阶谐波超极化率在具有和不具有拓扑界面态的异质结之间表现出超过十倍的对比。此外，我们发现在两个拓扑不同的GNR之间的界面处的拓扑状态可以引起异质结的量子等离子体频率的显著红移。我们的结果揭示了拓扑态的存在与石墨烯纳米结构和可能的其他光子系统增强的非线性光学响应之间的普遍而深刻的联系。
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引用次数: 0
Magnetic field enhanced critical current and subharmonic structures in dissipative superconducting gold nanowires 耗散超导金纳米线中磁场增强的临界电流和亚谐波结构
Quantum frontiers
Pub Date : 2022-12-01 DOI: 10.1007/s44214-022-00021-x
Jian Wang, Ziqiao Wang, Pinyuan Wang
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引用次数: 3
Correction: Magnetic field effects on the quantum spin liquid behaviors of NaYbS2 修正:磁场对NaYbS2量子自旋液体行为的影响
Quantum frontiers
Pub Date : 2022-12-01 DOI: 10.1007/s44214-022-00024-8
Jiangtao Wu, Jianshu Li, Zheng Zhang, Changle Liu, Y. Gao, E. Feng, G. Deng, Q. Ren, Zhe Wang, Rui Chen, J. Embs, F. Zhu, Qing Huang, Z. Xiang, Lu Chen, Yan Wu, E. Choi, Z. Qu, L. Li, Junfeng Wang, Haidong Zhou, Yixi Su, Xiaoqun Wang, Gang Chen, Qing-ming Zhang, Jie Ma
{"title":"Correction: Magnetic field effects on the quantum spin liquid behaviors of NaYbS2","authors":"Jiangtao Wu, Jianshu Li, Zheng Zhang, Changle Liu, Y. Gao, E. Feng, G. Deng, Q. Ren, Zhe Wang, Rui Chen, J. Embs, F. Zhu, Qing Huang, Z. Xiang, Lu Chen, Yan Wu, E. Choi, Z. Qu, L. Li, Junfeng Wang, Haidong Zhou, Yixi Su, Xiaoqun Wang, Gang Chen, Qing-ming Zhang, Jie Ma","doi":"10.1007/s44214-022-00024-8","DOIUrl":"https://doi.org/10.1007/s44214-022-00024-8","url":null,"abstract":"","PeriodicalId":74629,"journal":{"name":"Quantum frontiers","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48293024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantum remote sensing with atom-light entangled interface 原子-光纠缠界面量子遥感
Quantum frontiers
Pub Date : 2022-12-01 DOI: 10.1007/s44214-022-00020-y
Minwei Shi, Sheng Ming, Shuhe Wu, Dong Zhang, W. Du, Peiyu Yang, Guzhi Bao, Jinxian Guo, Weiping Zhang
{"title":"Quantum remote sensing with atom-light entangled interface","authors":"Minwei Shi, Sheng Ming, Shuhe Wu, Dong Zhang, W. Du, Peiyu Yang, Guzhi Bao, Jinxian Guo, Weiping Zhang","doi":"10.1007/s44214-022-00020-y","DOIUrl":"https://doi.org/10.1007/s44214-022-00020-y","url":null,"abstract":"","PeriodicalId":74629,"journal":{"name":"Quantum frontiers","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42547110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
MnBi2Te4 – a good platform for topological quantum physics study MnBi2Te4——拓扑量子物理研究的良好平台
Quantum frontiers
Pub Date : 2022-11-30 DOI: 10.1007/s44214-022-00018-6
Weilun Tan, Jing Liu, Hui Li, D. Guan, Jinfeng Jia
{"title":"MnBi2Te4 – a good platform for topological quantum physics study","authors":"Weilun Tan, Jing Liu, Hui Li, D. Guan, Jinfeng Jia","doi":"10.1007/s44214-022-00018-6","DOIUrl":"https://doi.org/10.1007/s44214-022-00018-6","url":null,"abstract":"","PeriodicalId":74629,"journal":{"name":"Quantum frontiers","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46883764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of the compressive trigonal crystal field and orbital polarization in strained monolayer α-RuCl3 on graphite 石墨上α-RuCl3应变单层压缩三角晶体场和轨道极化的鉴定
Quantum frontiers
Pub Date : 2022-11-23 DOI: 10.1007/s44214-022-00016-8
Zhongjie Wang, Lu Liu, Meng-Qiang Zhao, Haoran Zheng, Ke Yang, Chunzheng Wang, Fang Yang, Hua Wu, Chunlei Gao
{"title":"Identification of the compressive trigonal crystal field and orbital polarization in strained monolayer α-RuCl3 on graphite","authors":"Zhongjie Wang, Lu Liu, Meng-Qiang Zhao, Haoran Zheng, Ke Yang, Chunzheng Wang, Fang Yang, Hua Wu, Chunlei Gao","doi":"10.1007/s44214-022-00016-8","DOIUrl":"https://doi.org/10.1007/s44214-022-00016-8","url":null,"abstract":"","PeriodicalId":74629,"journal":{"name":"Quantum frontiers","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43061987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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