Chinese Journal of Physics最新文献_第4页

Unveiling novel insights: Nonlinear dispersion dynamics of optical solitons through new φ6-Model expansion in the Klein–Gordon equation 揭示新的见解：通过Klein-Gordon方程中新的φ6模型展开光学孤子的非线性色散动力学

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-20 DOI: 10.1016/j.cjph.2025.03.015

Asif Yokus , Muhammad Abubakar Isah

{"title":"Unveiling novel insights: Nonlinear dispersion dynamics of optical solitons through new φ6-Model expansion in the Klein–Gordon equation","authors":"Asif Yokus , Muhammad Abubakar Isah","doi":"10.1016/j.cjph.2025.03.015","DOIUrl":"10.1016/j.cjph.2025.03.015","url":null,"abstract":"<div><div>This study employs a nonlinear differential equation to model diverse phenomena, encompassing dislocation movement in crystals, characteristics of elementary particles, and the propagation of fluxions in Josephson junctions, with the Klein–Gordon equation serving as an illustrative example. The <span><math><msup><mrow><mi>φ</mi></mrow><mrow><mn>6</mn></mrow></msup></math></span>-model expansion method, a multitude of solution types are explicitly obtained, which encompass kink-type solitons, recognized as topological solitons within the realm of water waves. Notably, these solitons exhibit velocities independent of wave amplitude, alongside other variations like dark, singular, periodic, and combined singular soliton solutions. The research outcomes hold the potential to enhance the nonlinear dynamical characteristics of the Klein–Gordon equation. The suggested <span><math><msup><mrow><mi>φ</mi></mrow><mrow><mn>6</mn></mrow></msup></math></span>-model expansion technique provides a pragmatic and efficient strategy for addressing a wide range of nonlinear partial differential equations. The findings are visually presented through insightful graphs that elucidate the dynamic aspects of the results, demonstrating the accuracy of the obtained solutions when applied to the Klein–Gordon equation. The physical properties of surface waves are comprehensively analyzed, with a particular focus on Rayleigh waves. By modeling the regular oscillations, energy transfer and complex behavior of Rayleigh waves under nonlinear effects, this study provides theoretical support that these waves can exhibit solitary wave properties under certain boundary conditions.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":"Pages 476-492"},"PeriodicalIF":4.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Existence and stability results for steady atmospheric Ekman flows in ellipsoidal coordinates 椭球坐标系下大气稳态Ekman流的存在性和稳定性结果

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-19 DOI: 10.1016/j.cjph.2025.03.009

Taoyu Yang , Michal Fečkan , JinRong Wang

引用次数: 0

First investigation survey on the pristine C3N3 and B3O3 monolayer as a promising vehicle for delivery of 5-fluorouracil and cisplatin anticancer drugs 原始C3N3和B3O3单层作为5-氟尿嘧啶和顺铂抗癌药物递送载体的首次调查

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-15 DOI: 10.1016/j.cjph.2025.03.020

Alaa M. Khudhair , Ali Ben Ahmed

{"title":"First investigation survey on the pristine C3N3 and B3O3 monolayer as a promising vehicle for delivery of 5-fluorouracil and cisplatin anticancer drugs","authors":"Alaa M. Khudhair , Ali Ben Ahmed","doi":"10.1016/j.cjph.2025.03.020","DOIUrl":"10.1016/j.cjph.2025.03.020","url":null,"abstract":"<div><div>This study examines the effectiveness of C<sub>3</sub>N<sub>3</sub> and B<sub>3</sub>O<sub>3</sub> in sensing and delivering the anticancer drugs 5-fluorouracil (5-FU) and cisplatin (CP) using periodic density functional theory. The QuantumATK software is used to evaluate geometric, electronic, global reactivity, and adsorption energy of the interaction between C<sub>3</sub>N<sub>3</sub> and B<sub>3</sub>O<sub>3</sub> substrates with the anticancer medicines 5-FU and CP. The adsorption and sensory effects of these complex structures on the structural and electronic properties of the substrates are examined. The energy gap decreased by 38.22% and 86.51% after the adsorption of 5-FU and CP anticancer medicines, respectively, indicating that the C<sub>3</sub>N<sub>3</sub> and B<sub>3</sub>O<sub>3</sub> substrates exhibit an electrical response to these medications. The adsorption energies for the most stable 5-FU/C<sub>3</sub>N<sub>3</sub> and CP/C<sub>3</sub>N<sub>3</sub> complexes are -1.228 eV and -1.346 eV, respectively. We propose C<sub>3</sub>N<sub>3</sub> and B<sub>3</sub>O<sub>3</sub> substrates as possible carriers and sensors for the anticancer drugs 5-FU and CP.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The phase transitions and Joule–Thomson processes of charged de Sitter black holes with cloud of string and quintessence 带弦云和五元云的带电德西特黑洞的相变和焦耳-汤姆逊过程

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-14 DOI: 10.1016/j.cjph.2025.03.006

Fang Liu, Yun-Zhi Du, Ren Zhao, Huai-Fan Li

引用次数: 0

Phase transitions in dual-lane traffic model based on the continuous historical evolution message effect under V2X environment V2X环境下基于连续历史演化信息效应的双车道交通模型相变

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-13 DOI: 10.1016/j.cjph.2025.03.017

Guanghan Peng , Teti Jia , Hongzhuan Zhao , Huili Tan

{"title":"Phase transitions in dual-lane traffic model based on the continuous historical evolution message effect under V2X environment","authors":"Guanghan Peng , Teti Jia , Hongzhuan Zhao , Huili Tan","doi":"10.1016/j.cjph.2025.03.017","DOIUrl":"10.1016/j.cjph.2025.03.017","url":null,"abstract":"<div><div>Connected vehicles can gain the traffic information through vehicle to everything (V2X) communication technology, which contributes to dredging the running cars on congested roads in the traffic network. Additionally, the historical evolution process of traffic flow may play more and more contributions in traffic cyber physical systems (T-CPS) under V2X environment. Consequently, we in this manuscript come up with an innovative lattice hydrodynamic model based on the continuous historical evolution message (CHEM) effect on two lanes under V2X environment. To investigate the CHEM effect in traffic congestion, theoretical analysis and numerical simulation experiments have been executed to reveal traffic dynamics evolution process. Through simulations, traffic stability is strengthened by amplifying the sensitivity coefficient of the CHEM effect and the limited memory duration number (<em>L</em>≤3). Fortunately, the results imply that the CHEM effect can prominently improve the stability of traffic flow, which verifies that the CHEM effect is of great significance and value in lattice hydrodynamic model during traffic dynamics evolution process.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":"Pages 422-432"},"PeriodicalIF":4.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An improved network embedding method with multi-level closeness on link prediction 一种改进的多级链接密切度网络嵌入方法

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-13 DOI: 10.1016/j.cjph.2025.03.001

Zheng Wang, Tian Qiu, Guang Chen

{"title":"An improved network embedding method with multi-level closeness on link prediction","authors":"Zheng Wang, Tian Qiu, Guang Chen","doi":"10.1016/j.cjph.2025.03.001","DOIUrl":"10.1016/j.cjph.2025.03.001","url":null,"abstract":"<div><div>Network representation learning provides an important tool to link prediction in complex networks. Many existing methods consider the random walk within the direct neighbors of the nodes, however, ignore the closeness level between nodes. In this article, we propose a novel network embedding method by considering the closeness of three different levels, i.e., the close, median and faraway relationships. The close relationship is modeled by a natural nearest neighbor, the median relationship is referred to as the direct neighbor, and the faraway relationship is simulated by a role discovery. Diversified learning can better capture the node feature, and therefore helps improving link prediction. Experimental results show that the proposed method outperforms nine baseline methods, by testing them on six real datasets. The closenesses of the three levels are found to impact differently on the networks. In general, the direct neighbor closeness has a great impact, however, for the network with specific characteristics, other closenesses may be more important, e.g., the role neighbor closeness is important in the economic network.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":"Pages 248-259"},"PeriodicalIF":4.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Significant inverse topological caloric effect induced by topological multicriticality 拓扑多临界性引起的显著的逆拓扑热效应

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-11 DOI: 10.1016/j.cjph.2025.03.012

L.J. Ding, Y. Zhong

{"title":"Significant inverse topological caloric effect induced by topological multicriticality","authors":"L.J. Ding, Y. Zhong","doi":"10.1016/j.cjph.2025.03.012","DOIUrl":"10.1016/j.cjph.2025.03.012","url":null,"abstract":"<div><div>Recent attention has focused on the BDI symmetry class, which exhibits gapless topological quantum phase transitions (TQPTs) between critical phases along a critical line, arising from the interplay between topology and criticality with edge modes persisting at criticality. Here, we generalize this unconventional TQPT to an extended Su-Schrieffer-Heeger (SSH) model with broken time-reversal symmetry, belonging to the AIII symmetry class. This gapless topological criticality is characterized by a critical winding number with half integer and quantized jump, alongside a Grüneisen ratio (GR) displaying critical ±<em>T</em><sup>−1</sup> divergence and symmetric peak-dip structures. Furthermore, we propose that multicriticality-enhanced topological caloric effects (TCEs) offer a promissing alternative to the conventional magnetic refrigeration for quantum devices. By tuning topological parameters along the critical line, we demonstrate a significant inverse TCE (ITCE) near the multicritical point at low temperatures, featuring large isothermal entropy change, adiabatic temperature change and high efficiency factor. This pronounced ITCE could enable ultralow temperature cooling, advancing both the thermodynamic charaterization of gapless TQPT and cryofree quantum referigeration for quantum computing environments.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":"Pages 383-390"},"PeriodicalIF":4.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Semi-quantum dialogue protocol based on four-particle Ω state 基于四粒子Ω态的半量子对话协议

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-10 DOI: 10.1016/j.cjph.2025.03.003

Zhen-Zhen Li, Run-Ze He, Zhen-Zhen Zhang, Hai-Yang Ding, Dong-Fei Wang

引用次数: 0

Characterization of terahertz propagation properties on subwavelength dielectric ribbon waveguides 亚波长介质带波导上太赫兹传播特性的表征

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-10 DOI: 10.1016/j.cjph.2025.03.008

Ja-Yu Lu , Che-Chu Hsieh , Pin-Jung Lu , Borwen You

{"title":"Characterization of terahertz propagation properties on subwavelength dielectric ribbon waveguides","authors":"Ja-Yu Lu , Che-Chu Hsieh , Pin-Jung Lu , Borwen You","doi":"10.1016/j.cjph.2025.03.008","DOIUrl":"10.1016/j.cjph.2025.03.008","url":null,"abstract":"<div><div>Various subwavelength dielectric waveguides have been developed for imaging, sensing, and communication applications because of low-loss propagation and tailorable evanescent power distribution. Dielectric ribbon waveguides with high aspect ratio cores have lower attenuation and geometry-insensitive radiation loss compared with wire waveguides in a cylindrical core structure. This study experimentally characterizes the transmitted spectral properties of air-cladded polymer ribbons for waveguiding terahertz (THz) radiation and with aspect ratios above 200 under two orthogonally polarized wave excitations. The spectral dependence on the geometrical parameters of solid- and porous-core ribbon waveguides were completely investigated via THz time domain spectroscopy. For the first time, it is found that the measured spectral features of transverse electric (TE)-like modes, including the attenuation constant, effective refractive index, and transmission bandwidth, correlate to both the thickness and refractive index of a waveguide core, but those of transverse magnetic (TM)-like modes relate only to core thickness. The birefringence of the ribbon waveguide increases with the THz wave frequency and is large for thick or high-index ribbon cores because of the increased power ratio in the core for TE-like modes. For the dominant ribbon waveguide modes of TM-like modes, the average attenuation and delivered bandwidth at different ribbon thicknesses are successfully measured at ranges of 0.04–0.13 cm<sup>−1</sup> and 700–350 GHz, respectively, both of which are superior to those of TE-like mode and hybrid HE<sub>11</sub> mode for the polyethylene wire waveguide. Experimental results show that the polymer ribbon waveguide has potential for use in the building blocks of THz integrated circuits, THz wire communication, waveguide-based spectroscopy, and biochemical sensing applications.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":"Pages 638-650"},"PeriodicalIF":4.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Neurodynamic behavior of hippocampal CA1 neuron model driven by external current stimulation 外电刺激下海马CA1神经元模型的神经动力学行为

IF 4.6 2区物理与天体物理

Chinese Journal of Physics Pub Date : 2025-03-10 DOI: 10.1016/j.cjph.2025.03.002

Lei Guo , Huan Liu , Youxi Wu , Yihua Song

{"title":"Neurodynamic behavior of hippocampal CA1 neuron model driven by external current stimulation","authors":"Lei Guo , Huan Liu , Youxi Wu , Yihua Song","doi":"10.1016/j.cjph.2025.03.002","DOIUrl":"10.1016/j.cjph.2025.03.002","url":null,"abstract":"<div><div>Electromagnetic intervention has significant superiorities in improving the brain cognitive functions. The hippocampal CA1 neuron is associated with cognitive functions such as working memory and spatial navigation. However, it is difficult to capture the neurodynamic behavior of biological neurons due to the disadvantages of biological electrophysiological signals. Neuron model can simulate the electrophysiological characteristics of biological neuron, and produce its neurodynamic behavior. In addition, the hippocampal CA1 neuron model did not consider the electromagnetic induction caused by ions flow inside and outside the cell membrane of biological neurons. Thus, introducing magnetic flux-controlled memristor, we construct a hippocampal CA1 neuron model that considers electromagnetic induction. Then, we investigate its neurodynamic behavior driven by external current stimulation using neurodynamic methods, including the interspike interval bifurcation, the largest Lyapunov exponent, the time sequence of membrane potential, and the phase diagram. Our results find that when the CA1 neuron model is initially in any of the resting state, spiking state, and cluster-firing state, the model’s firing is promoted as the amplitude of external current stimulation increases, while the model’s firing is inhibited as the frequency of external current stimulation increases. Additionally, as the amplitude increases, the model exhibits different firing modes, tending to chaotic firing from the three initial states; as the frequency increases, the model exhibits different firing modes, tending to spiking or cluster-firing from the three initial states. This work can enhance the understanding of the regulatory mechanism of external current stimulation on the hippocampus.</div></div>","PeriodicalId":10340,"journal":{"name":"Chinese Journal of Physics","volume":"95 ","pages":"Pages 320-336"},"PeriodicalIF":4.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143681014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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