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CHERN: 作品数：90被引量：79H指数：4; 导出分析报告; 相关领域：理学更多>>; 相关作者：郭崟孙利群刘子龙赵卫雄张为俊更多>>; 相关机构：清华大学苏州大学河北师范大学中国科学院更多>>; 相关期刊：《原子核物理评论》《Communications in Theoretical Physics》《Sino-US English Teaching》《Chinese Physics B》更多>>; 相关基金：国家自然科学基金北京市自然科学基金中国博士后科学基金国家重点基础研究发展计划更多>>

SIMONS-TYPE INTEGRAL AND HEIGHT FUNCTION IN SPHERES: 《数学杂志》2025年第2期122-130,共9页GONG Yi-fan XING Jin-xiong; This article delves Chern's conjecture for hypersurfaces with constant second fundamental form squared length S in the spherical space.At present,determining whether the third gap point of S is 2n remains unsolved yet...; 关键词：Chern's conjecture Height function Simons-Type integral

Anomalous open orbits in Hofstadter spectrum of Chern insulator: 《Science China(Physics,Mechanics & Astronomy)》2025年第3期139-144,共6页Haijiao Ji Peng Zhou Noah F.Q.Yuan Hua Jiang Haiwen Liu X.C.Xie; supported by the National Basic Research Program of China(Grant No.2017YFA0303301);the National Natural Science Foundation of China(Grant Nos.12022407,and 11974256);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB28000000)。; The nontrivial band topology of Chern insulator can enrich the content of its Hofstadter butterfly spectra,which is closely related to recent experiments in twisted bilayer graphene and cold atom systems.We investigat...; 关键词：Hofstadter spectrum topological phase transition open orbit

Planar Hall plateau in magnetic Weyl semimetals: 《Science Bulletin》2025年第2期187-192,共6页Lei Li Chaoxi Cui Run-Wu Zhang Zhi-Ming Yu Yugui Yao; supported by the National Key Research and Development Program of China(2020YFA0308800);the National Natural Science Foundation of China(12004035,12234003 and 12321004);the China Postdoctoral Science Foundation(2021TQ0043 and 2021M700437);Beijing Institute of Technology Research Fund Program for Young Scholars。; Despite the rapid progress in the study of planar Hall effect(PHE)in recent years,all the previous works only showed that the PHE is connected to local geometric quantities,such as Berry curvature.Here,for the first t...; 关键词：Magnetic Weyl semimetals Planar Hall effect Quantized plateau Chern number

Topological states constructed by two different trivial quantum wires: 《Chinese Physics B》2025年第1期246-255,共10页Jing-Run Lin Linxi Lv Zheng-Wei Zuo; Project supported by the National Natural Science Foundation of China (Grant Nos. 12074101 and 11604081);sponsored by the Natural Science Foundation of Henan Province, China (Grant No. 212300410040)。; The topological states of the two-leg and three-leg ladders formed by two trivial quantum wires with different lattice constants are theoretically investigated. Firstly, we take two trivial quantum wires with a lattic...; 关键词：trivial quantum wire topological invariant inversion symmetric topological insulator Chern metal

Janus monolayers Fe_(2)SSeX_(2)(X=Ga,In,and Tl):Robust nontrivial topology with high Chern number: 《Chinese Physics B》2024年第12期382-388,共7页Kang Jia Xiao-Jing Dong Pei-Ji Wang Chang-Wen Zhang; Project supported by the National Natural Science Foundation of China(Grant Nos.52173283 and 62071200);Taishan Scholar Program of Shandong Province(Grant No.ts20190939);Independent Cultivation Program of Innovation Team of Jinan City(Grant No.2021GXRC043)。; High-performance quantum anomalous Hall(QAH)systems are crucial materials for exploring emerging quantum physics and magnetic topological phenomena.Inspired by layered FeSe materials with excellent superconducting pro...; 关键词：Weyl semimetal high Chern number chiral spin-edge state locking ROBUST

Strain-modulated antiferromagnetic Chern insulator in NiOsCl_(6) monolayer: 《Chinese Physics B》2024年第12期389-394,共6页Bin Wu Na Li Xin-Lian Chen Wei-Xiao Ji Pei-Ji Wang Shu-Feng Zhang Chang-Wen Zhang; Project supported by the National Natural Science Foundation of China(Grant Nos.12104183,52173283,and 62071200);the Natural Science Foundation of Shandong Province,China(Grant Nos.ZR2021MA040 and ZR2023MA091);the Taishan Scholar Program of Shandong Province,China(Grant No.ts20190939);the Independent Cultivation Program of Innovation Team of Jinan City(Grant No.2021GXRC043);supported by high-performance computing platform at University of Jinan。; Recently,Chern insulators in an antiferromagnetic(AFM)phase have been suggested theoretically and predicted in a few materials.However,the experimental observation of two-dimensional(2D)AFM quantum anomalous Hall effe...; 关键词：Chern insulator ANTIFERROMAGNETISM topological materials

Experimental demonstration of topological bounds in quantum metrology: 《National Science Review》2024年第10期248-256,共9页Min Yu Xiangbei Li Yaoming Chu Bruno Mera F.NurÜnal Pengcheng Yang Yu Liu Nathan Goldman Jianming Cai; supported by the National Natural Science Foundation of China(12161141011 and 11874024);the National Key R&D Program of China(2018YFA0306600);Shanghai Key Laboratory of Magnetic Resonance(East China Normal University),the FR S-FNR S(Belgium),the ERC(Starting Grant TopoCold),the Royal Society under a Newton International Fellowship,the Marie Skłodowska-Curie programme of the European Commission 893915,the EOS(CHEQS project);Y.-M.C.is supported by the Young Scientists Fund of the National Natural Science Foundation of China(12304572);the fellowship of China Postdoctoral Science Foundation(2022M721256);M.Y.is supported by the fellowship of China Postdoctoral Science Foundation(2023M741270);Y.L.is supported by the BMBF under the funding program‘quantum technologies-from basic research to market’in the project Spinning(13N16215).; Quantum metrology is deeply connected to quantum geometry,through the fundamental notion of quantum Fisher information.Inspired by advances in topological matter,it was recently suggested that the Berry curvature and ...; 关键词：quantum metrology multi-parameter estimation topological bounds Berry curvature Chern number topological phase transition

Simulating a Chern Insulator with C=±2 on Synthetic Floquet Lattice: 《Chinese Physics Letters》2024年第9期1-8,共8页Ling-Xiao Lei Wei-Chen Wang Guang-Yao Huang Shun Hu Xi Cao Xin-Fang Zhang Ming-Tang Deng Ping-Xing Chen; supported by the Innovation Program for Quantum Science and Technology(Grant No.2021ZD0302401);the Hunan Provincial Science Foundation for Distinguished Young Scholars(Grant No.2021JJ10043);the Open Research Fund from State Key Laboratory of High Performance Computing of China(HPCL)(Grant No.201901-09).; The synthetic Floquet lattice,generated by multiple strong drives with mutually incommensurate frequencies,provides a powerful platform for quantum simulation of topological phenomena.In this study,we propose a 4-band...; 关键词：properties TOPOLOGICAL quantum

Discovery of controllable high Chern number quantum anomalous Hall state in tetragonal lattice FeSIn: 《Chinese Physics B》2024年第6期504-509,共6页任小浪张昌文; Project supported by the National Natural Science Foundation of China (Grant No. 52173283);the Taishan Scholar Program of Shandong Province,China (Grant No. ts20190939);the Independent Cultivation Program of Innovation Team of Jinan City (Grant No. 2021GXRC043)。; Quantum anomalous Hall(QAH) insulators have excellent properties driven by fancy topological physics, but their practical application is greatly hindered by the observed temperature of liquid nitrogen, and the QAH ins...; 关键词：high Chern number Weyl semimetals quantum anomalous Hall insulator magnetic transition temperature

Intrinsically topological second Chern insulator via synthetic dimensions: 《National Science Review》2024年第6期79-80,共2页Seokwoo Kim Junsuk Rho; Topology,an invariant quantity under continuous deformation,has significantly expanded our understanding of the phases of matter over recent decades.This concept,extending from quantum mechanics to classical wave plat...; 关键词：SYMMETRY BANDS INSULATOR

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