Chinese Physics B最新文献_第3页

Riemann–Hilbert problem for the defocusing Lakshmanan–Porsezian–Daniel equation with fully asymmetric nonzero boundary conditions 具有完全非对称非零边界条件的失焦拉克什曼-波尔舍西安-丹尼尔方程的黎曼-希尔伯特问题

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-08-01 DOI: 10.1088/1674-1056/ad5af2

Jianying Ji, Xiyang Xie

{"title":"Riemann–Hilbert problem for the defocusing Lakshmanan–Porsezian–Daniel equation with fully asymmetric nonzero boundary conditions","authors":"Jianying Ji, Xiyang Xie","doi":"10.1088/1674-1056/ad5af2","DOIUrl":"https://doi.org/10.1088/1674-1056/ad5af2","url":null,"abstract":"The Riemann–Hilbert approach is demonstrated to investigate the defocusing Lakshmanan–Porsezian–Daniel equation under fully asymmetric nonzero boundary conditions. In contrast to the symmetry case, this paper focuses on the branch points related to the scattering problem rather than using the Riemann surfaces. For the direct problem, we analyze the Jost solution of lax pairs and some properties of scattering matrix, including two kinds of symmetries. The inverse problem at branch points can be presented, corresponding to the associated Riemann–Hilbert. Moreover, we investigate the time evolution problem and estimate the value of solving the solutions by Jost function. For the inverse problem, we construct it as a Riemann–Hilbert problem and formulate the reconstruction formula for the defocusing Lakshmanan–Porsezian–Daniel equation. The solutions of the Riemann–Hilbert problem can be constructed by estimating the solutions. Finally, we work out the solutions under fully asymmetric nonzero boundary conditions precisely via utilizing the Sokhotski–Plemelj formula and the square of the negative column transformation with the assistance of Riemann surfaces. These results are valuable for understanding physical phenomena and developing further applications of optical problems.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"19 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bose–Einstein distribution temperature features of quasiparticles around magnetopolaron in Gaussian quantum wells of alkali halogen ions 碱卤离子高斯量子阱中磁极子周围准粒子的玻色-爱因斯坦分布温度特征

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-08-01 DOI: 10.1088/1674-1056/ad5c3c

Xin Zhang, 仁高娃 Sarengaowa, Shuang Han, Ran An, Xin-Xue Zhang, Xin-Ying Ji, Hong-Xu Jiang, Xin-Jun Ma, Pei-Fang Li, Yong Sun

引用次数: 0

A solution method for decomposing vector fields in Hamilton energy 分解汉密尔顿能量矢量场的求解方法

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-08-01 DOI: 10.1088/1674-1056/ad5a74

Xin Zhao, Ming Yi, Zhou-Chao Wei, Yuan Zhu, Lu-Lu Lu

引用次数: 0

Effect of distribution of fines on evolution of cooperation in spatial public goods game 罚款分配对空间公共产品博弈中合作演变的影响

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-08-01 DOI: 10.1088/1674-1056/ad5aee

Xing-Ping Sun, Yan-Zheng Bi, Hong-Wei Kang, Yong Shen, Qing-Yi Chen

{"title":"Effect of distribution of fines on evolution of cooperation in spatial public goods game","authors":"Xing-Ping Sun, Yan-Zheng Bi, Hong-Wei Kang, Yong Shen, Qing-Yi Chen","doi":"10.1088/1674-1056/ad5aee","DOIUrl":"https://doi.org/10.1088/1674-1056/ad5aee","url":null,"abstract":"In the realm of public goods game, punishment, as a potent tool, stands out for fostering cooperation. While it effectively addresses the first-order free-rider problem, the associated costs can be substantial. Punishers incur expenses in imposing sanctions, while defectors face fines. Unfortunately, these monetary elements seemingly vanish into thin air, representing a loss to the system itself. However, by virtue of the redistribution of fines to cooperators and punishers, not only can we mitigate this loss, but the rewards for these cooperative individuals can be enhanced. Based upon this premise, this paper introduces a fine distribution mechanism to the traditional pool punishment model. Under identical parameter settings, by conducting a comparative experiment with the conventional punishment model, the paper aims to investigate the impact of fine distribution on the evolution of cooperation in spatial public goods game. The experimental results clearly demonstrate that, in instances where the punishment cost is prohibitively high, the cooperative strategies of the traditional pool punishment model may completely collapse. However, the model enriched with fine distribution manages to sustain a considerable number of cooperative strategies, thus highlighting its effectiveness in promoting and preserving cooperation, even in the face of substantial punishment cost.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"58 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Half-metallic ferromagneticWeyl fermions related to dynamic correlations in the zinc-blende compound VAs 与锌-蓝晶石化合物 VAs 中动态相关性有关的半金属铁磁性韦尔费米子

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-08-01 DOI: 10.1088/1674-1056/ad5f86

Xianyong Ding, Haoran Wei, Ruixiang Zhu, Xiaoliang Xiao, Xiaozhi Wu, Rui Wang

{"title":"Half-metallic ferromagneticWeyl fermions related to dynamic correlations in the zinc-blende compound VAs","authors":"Xianyong Ding, Haoran Wei, Ruixiang Zhu, Xiaoliang Xiao, Xiaozhi Wu, Rui Wang","doi":"10.1088/1674-1056/ad5f86","DOIUrl":"https://doi.org/10.1088/1674-1056/ad5f86","url":null,"abstract":"The realization of 100% polarized topological Weyl fermions in half-metallic ferromagnets is of particular importance for fundamental research and spintronic applications. Here, we theoretically investigate the electronic and topological properties of the zinc-blende compound VAs, which was deemed as a half-metallic ferromagnet related to dynamic correlations. Based on the combination of density functional theory and dynamical mean field theory, we uncover that the half-metallic ferromagnet VAs exhibits attractive Weyl semimetallic behaviors which are very close to the Fermi level in the DFT + <italic toggle=\"yes\">U</italic> regime with effect <italic toggle=\"yes\">U</italic> values ranging from 1.5 eV to 2.5 eV. Meanwhile, we also investigate the magnetization-dependent topological properties; the results show that the change of magnetization directions only slightly affects the positions of Weyl points, which is attributed to the weak spin–orbital coupling effects. The topological surface states of VAs projected on semi-infinite (001) and (111) surfaces are investigated. The Fermi arcs of all Weyl points are clearly visible on the projected Fermi surfaces. Our findings suggest that VAs is a fully spin-polarized Weyl semimetal with many-body correlated effects in the effective <italic toggle=\"yes\">U</italic> values range from 1.5 eV to 2.5 eV.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"17 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determination of liquid viscosity based on dual-frequency-band particle tracking 基于双频波段粒子跟踪的液体粘度测定法

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-08-01 DOI: 10.1088/1674-1056/ad597e

Lihua Yan, Boyin Xue, Yuanji Li, Jinxia Feng, Xingkang Wu, Kuanshou Zhang

引用次数: 0

Quantum block coherence with respect to projective measurements 关于投影测量的量子块相干性

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-07-31 DOI: 10.1088/1674-1056/ad50c1

Pu Wang, 璞王, Zhong-Yan Li, 忠艳李, Hui-Xian Meng and 会贤孟

引用次数: 0

Integrated analysis of plasma rotation effect on HL-3 hybrid scenario 等离子体旋转效应对 HL-3 混合方案的综合分析

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-07-31 DOI: 10.1088/1674-1056/ad43d3

Miao Xue, 淼薛, Guo-Yao Zheng, 国尧郑, Lei Xue, 雷薛, Jia-Xian Li, 佳鲜李, Shuo Wang, 硕王, Hai-Long Du, 海龙杜, Yi-Ren Zhu, 毅仁朱, Yue Zhou and 月周

{"title":"Integrated analysis of plasma rotation effect on HL-3 hybrid scenario","authors":"Miao Xue, 淼薛, Guo-Yao Zheng, 国尧郑, Lei Xue, 雷薛, Jia-Xian Li, 佳鲜李, Shuo Wang, 硕王, Hai-Long Du, 海龙杜, Yi-Ren Zhu, 毅仁朱, Yue Zhou and 月周","doi":"10.1088/1674-1056/ad43d3","DOIUrl":"https://doi.org/10.1088/1674-1056/ad43d3","url":null,"abstract":"The hybrid scenario, which has good confinement and moderate MHD instabilities, is a proposed operation scenario for international thermonuclear experimental reactor (ITER). In this work, the effect of plasma rotation on the HL-3 hybrid scenario is analyzed with the integrated modeling framework OMFIT. The results show that toroidal rotation has no obvious effect on confinement with a high line averaged density of nbar ∼ 7 × 1019 m−3. In this case, the ion temperature only changes from 4.7 keV to 4.4 keV with the rotation decreasing from 105 rad/s to 103 rad/s, which means that the turbulent heat transport is not dominant. While in the scenarios characterized by lower densities, such as nbar ∼ 4 × 1019 m−3, turbulent transport becomes dominant in determining heat transport. The ion temperature rises from 3.8 keV to 6.1 keV in the core as the rotation velocity increases from 103 rad/s to 105 rad/s. Despite the ion temperature rising, the rotation velocity does not obviously affect electron temperature or density. Additionally, it is noteworthy that the variation in rotation velocity does not significantly affect the global confinement of plasma in scenarios with low density or with high density.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"10 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Absence of BCS–BEC crossover in FeSe0.45Te0.55 superconductor FeSe0.45Te0.55 超导体中不存在 BCS-BEC 交叉

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-07-01 DOI: 10.1088/1674-1056/ad51f9

Junjie Jia, Yadong Gu, Chaohui Yin, Yingjie Shu, Yiwen Chen, Jumin Shi, Xing Zhang, Hao Chen, Taimin Miao, Xiaolin Ren, Bo Liang, Wenpei Zhu, Neng Cai, Fengfeng Zhang, Shenjin Zhang, Feng Yang, Zhimin Wang, Qinjun Peng, Zuyan Xu, Hanqing Mao, Guodong Liu, Zhian Ren, Lin Zhao, Xing-Jiang Zhou

{"title":"Absence of BCS–BEC crossover in FeSe0.45Te0.55 superconductor","authors":"Junjie Jia, Yadong Gu, Chaohui Yin, Yingjie Shu, Yiwen Chen, Jumin Shi, Xing Zhang, Hao Chen, Taimin Miao, Xiaolin Ren, Bo Liang, Wenpei Zhu, Neng Cai, Fengfeng Zhang, Shenjin Zhang, Feng Yang, Zhimin Wang, Qinjun Peng, Zuyan Xu, Hanqing Mao, Guodong Liu, Zhian Ren, Lin Zhao, Xing-Jiang Zhou","doi":"10.1088/1674-1056/ad51f9","DOIUrl":"https://doi.org/10.1088/1674-1056/ad51f9","url":null,"abstract":"In iron-based superconductor Fe(Se,Te), a flat band-like feature near the Fermi level was observed around the Brillouin zone center in the superconducting state. It is under debate whether this is the evidence on the presence of the BCS–BEC [Bardeen–Cooper–Schrieffer (BCS), Bose–Einstein condensation (BEC)] crossover in the superconductor. High-resolution laser-based angle-resolved photoemission measurements are carried out on high quality single crystals of FeSe0.45Te0.55 superconductor to address the issue. By employing different polarization geometries, we have resolved and isolated the d<italic toggle=\"yes\">yz</italic> band and the topological surface band, making it possible to study their superconducting behaviors separately. The d<italic toggle=\"yes\">yz</italic> band alone does not form a flat band-like feature in the superconducting state and the measured dispersion can be well described by the BCS picture. We find that the flat band-like feature is formed from the combination of the d<italic toggle=\"yes\">yz</italic> band and the topological surface state band in the superconducting state. These results reveal the origin of the flat band-like feature and rule out the presence of BCS-BEC crossover in Fe(Se,Te) superconductor.","PeriodicalId":10253,"journal":{"name":"Chinese Physics B","volume":"11 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141867389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear time-reversal interferometry with arbitrary quadratic collective-spin interaction 具有任意二次集体自旋相互作用的非线性时间反转干涉测量法

IF 1.7 4区物理与天体物理

Chinese Physics B Pub Date : 2024-07-01 DOI: 10.1088/1674-1056/ad4ff7

Zhiyao Hu, Qixian Li, Xuanchen Zhang, He-Bin Zhang, Long-Gang Huang, Yong-Chun Liu

引用次数: 0