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RAMSEY: 作品数：111被引量：114H指数：5; 导出分析报告; 相关领域：理学经济管理更多>>; 相关作者：顾思洪张奕邓威云恩学苏文龙更多>>; 相关机构：中国科学院中国科学院大学北京大学广西科学院更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划广西省自然科学基金教育部人文社会科学重点研究基地度重大研究项目更多>>

Ramsey and Gallai-Ramsey Numbers of Cycles and Books: 《Acta Mathematicae Applicatae Sinica》2025年第2期425-440,共16页Mei-qin WEI Ya-ping MAO Ingo SCHIERMEYER Zhao WANG; supported by the Shanghai Sailing Program(No.22YF1416000);the National Natural Science Foundation of China(Nos.12401461,12471329,12061059,12201395).; Given two non-empty graphs G,H and a positive integer k,the Gallai-Ramsey number gr_(k)(G:H)is defined as the minimum integer N such that for all n≥N,every exact k-edge-coloring of Kn contains either a rainbow copy o...; 关键词：Ramsey number Gallai-Ramsey number rainbow path CYCLE book graph

Telegraph Flux Noise Induced Beating Ramsey Fringe in Transmon Qubits: 《Chinese Physics Letters》2025年第4期23-37,共15页Zhi-Hao Wu Ling-Xiao Lei Xin-Fang Zhang Shi-Chuan Xue Shun Hu Cong Li Xiang Fu Ping-Xing Chen Kai Lu Ming-Tang Deng Jun-Jie Wu; Ramsey oscillations typically exhibit an exponential decay envelope due to environmental noise. However,recent experiments have observed nonmonotonic Ramsey fringes characterized by beating patterns, which deviate fro...; 关键词：ramsey fringes electric instruments induced flux noise ramsey oscillations ramsey fringe transmon qubits beating patterns beating pattern telegraph flux noise

Precise spectroscopy of metastable Li+using the optical Ramsey technique in support of time dilation tests: 《Photonics Research》2025年第1期201-209,共9页PENG-PENG ZHOU SHAO-LONG CHEN CHENG-GANG QIN XU-RUI CHANG ZHI-QIANG ZHOU WEI SUN YAO HUANG KE-LIN GAO HUA GUAN; National Natural Science Foundation of China(92265206,12121004,12393823,11934014,12247150,12175076);CAS Project for Young Scientists in Basic Research(YSBR055,YSBR085);Natural Science Foundation of Hubei Province(2022CFA013);CAS Youth Innovation Promotion Association(Y2022099).; Time dilation constitutes a crucial aspect of Lorentz invariance within special relativity and undergoes constant scrutiny through numerous Ives-Stilwell-type experiments employing the Doppler effect.In our study,we e...; 关键词：SPECTROSCOPY effect RAMSEY

小型磁选态铯原子钟性能测试数据的统计与分析: 《真空与低温》2024年第6期658-663,共6页陈江刘志栋王骥马沛郭磊黄良育杨军宋冰冰; 国家自然科学基金(62275114)。; LIP Cs-3000是一种国产的小型磁选态铯原子钟,在时频计量、卫星导航等领域获得应用。对近期交付的LIP Cs-3000性能测试数据进行统计与分析,得到了准确度的分布与范围,同时得到了峰谷比、信噪比、Ramsey线宽等指标的分布。从理论上估计...; 关键词：磁选态铯原子钟峰谷比信噪比 Ramsey线宽电子倍增器

Zeeman decoherence effect of trapped ^(199)Hg^(+) ion Ramsey spectra: 《Chinese Physics B》2024年第11期272-277,共6页Ge Liu Hao Liu Yihe Chen Jian Wang Shuhong Huang Chengbin Li Lei She; Project supported by the National Key Research and Development Program of China(Grant No.2022YFB3904002).; In the ^(199)Hg^(+) ion microwave clock,the Zeeman decoherence effect caused by the overlapping of Zeeman sidebands and the radial secular motion sidebands will decrease the contrast of the Ramsey fringe,thus reducing...; 关键词：^(199)Hg^(+)ion microwave clock Zeeman decoherence transverse relaxation time

基于玻色凝聚^(87)Rb原子气体相位Ramsey干涉的磁场探测: 《深圳大学学报（理工版）》2024年第5期517-523,共7页吴嘉涛方瑞环韩成银马翥詹畅李懋捷黄嘉豪鹿博李朝红; 国家重点研发计划资助项目(2022YFA1404104);国家自然科学基金资助项目(12025509,12104521)。; 基于玻色凝聚原子气体的磁场探测可兼顾高灵敏度和高空间分辨率.利用一维光晶格中玻色凝聚^(87)Rb原子气体F=1,m_(F)=1→F=2,m_(F)=-1(F为原子总角动量的量子数,m_(F)为F能级的磁量子数)的双光子跃迁,已实现基于相位Ramsey干涉的精密磁...; 关键词：光学 Ramsey光谱光学泵浦原子激光冷却与囚禁玻色凝聚原子气体精密磁场探测

Ramsey Numbers of Trees Versus Multiple Copies of Books: 《Acta Mathematicae Applicatae Sinica》2024年第3期600-612,共13页Xiao-bing GUO Si-nan HU Yue-jian PENG; supported in part by National Natural Science Foundation of China (No.11931002);China Postdoctoral Science Foundation (No.2021M701162)。; Given two graphs G and H,the Ramsey number R(G,H) is the minimum integer N such that any two-coloring of the edges of K_(N) in red or blue yields a red G or a blue H.Let v(G) be the number of vertices of G and χ(G) b...; 关键词：ramsey number ramsey goodness TREE BOOK

一些关于C<sub>4</sub>对星的Set Ramsey 数: 《应用数学进展》2024年第2期869-876,共8页熊慧芸; 运用参数坐标构造出一个有限射影平面,由射影平面与射影平面上一个极性映射导出极性图. 根据极性图, 对于一些 n,能够构造出 C4 对星 K1,n 的 set Ramsey 数 Ms(C4, K1,n) 的极值图。由此得到了关于这部分 n 的 Ms(C4, K1,n) 的下界...; 关键词：有限射影平面极性图多部图 Set Ramsey数

Direct characteristic-function tomography of the quantum states of quantum fields: 《Science China(Physics,Mechanics & Astronomy)》2023年第11期119-125,共7页Zehua Tian Jiliang Jing Jiangfeng Du; supported by the National Key Research and Development Program of China(Grant No.2018YFA0306600);Anhui Initiative in Quantum Information Technologies(Grant No.AHY050000);supported by the National Natural Science Foundation of China(Grant No.11905218);the CAS Key Laboratory for Research in Galaxies and Cosmology,Chinese Academy of Sciences(Grant No.18010203)。; Herein,we propose a novel strategy for implementing a direct readout of the symmetric characteristic function of the quantum states of quantum fields without the involvement of idealized measurements,an aspect that ha...; 关键词：characteristic-function tomography quantum fields Ramsey interferometry analogue gravity

Rabi和Ramsey原子光谱最优测量点的选取: 《山西大学学报（自然科学版）》2023年第3期636-641,共6页吴嘉瑜张秀荣李卫东; 国家自然科学基金(11874247);中国国家重点研究开发计划(2017YFA0304500);广东省重点实验室(2019B121203002);中国量子光学与量子光学器件国家重点实验室计划(KF201703)。; 利用量子Fisher信息,对二能级原子的Rabi光谱和Ramsey光谱,在量子投影测量下的最优测量条件进行了研究。结果表明,Rabi光谱的量子Fisher信息与Rabi频率2b密切相关,当光和原子作用时间越接近π/(2b),量子Fisher信息值越大,并且可依据量子...; 关键词：原子钟 Rabi谱 Ramsey谱量子Fisher信息

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