International Journal of Modern Physics B最新文献_第4页

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-11 DOI: 10.1142/s0217979225500092

Zhongkai Dang, Lei Shi, Yuan Yao, Lixiang Li

{"title":"The popular gene of hot event: A hot event propagation mechanism based on information coupling and information energy interaction","authors":"Zhongkai Dang, Lei Shi, Yuan Yao, Lixiang Li","doi":"10.1142/s0217979225500092","DOIUrl":"https://doi.org/10.1142/s0217979225500092","url":null,"abstract":"Recently, the research on the propagation of hot events has received widespread attention. By analyzing the data of hot events and the data of the common events in the same period on the network, we found that hot events usually break out quickly and opinion leaders and cluster behaviors exist in their propagation process. At the same time, the media public opinion fields of reporting hot events overlap and promote each other. Based on the common factors that drive an event to become a hot event, we used the heat calculation formula and entropy method to put forward the propagation model of hot events based on information coupling and information energy interaction. In the model, the coupling values of different event information are quantified based on the information fragment coupling effect. The heat calculation formula is used to dynamically adjust the propagation probability of different individuals in the propagation process of hot event, and the sensational effect threshold is introduced based on the overall energy value of the event. Finally, we used the real social relationship networks to simulate the evolution propagation process of the hot events, and compared it with the crawling real propagation curve of the events. The proposed model provides a good supplement for the study of the hot events.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"78 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140152931","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

The spin-5/2 Blume–Capel model by mean-field approach and renormalization group theory 用均值场方法和重正化群理论研究自旋-5/2 布卢姆-卡佩尔模型

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-11 DOI: 10.1142/s0217979225500146

I. A. Badrour, R. Aharrouch, N. Hachem, A. Al-Rajhi, M. El Bouziani

引用次数: 0

Chemical reaction effect across the moving flat plate with heat generation and MHD flow of Maxwell fluid with viscous dissipation 带发热的移动平板上的化学反应效应和带粘性耗散的麦克斯韦流体的 MHD 流动

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-09 DOI: 10.1142/s0217979225500274

K. Sudarmozhi, D. Iranian, Ilyas Khan

{"title":"Chemical reaction effect across the moving flat plate with heat generation and MHD flow of Maxwell fluid with viscous dissipation","authors":"K. Sudarmozhi, D. Iranian, Ilyas Khan","doi":"10.1142/s0217979225500274","DOIUrl":"https://doi.org/10.1142/s0217979225500274","url":null,"abstract":"In this paper, the investigation centered on examining a Maxwell fluid’s convective double diffusive flow carefully considers factors such as chemical reactions, radiation, and the presence of a permeable moving flat plate. Additionally, the study encompassed the effects of heat generation and magnetohydrodynamics (MHD). The governing equations, initially expressed as partial differential equations, were converted into ordinary differential equations using a similarity transformation technique to facilitate the analysis. The computational power of MATLAB’s BVP4C software was harnessed to solve this resultant system of ODEs efficiently. The outcomes of this investigation were presented in the form of graphical representations that vividly depicted the behavior of the flow field, energy conservation, and concentration profiles under various parameter combinations. The research findings were thoughtfully summarized in a table, offering a comprehensive overview of temperature, velocity, and mass profiles across various parameters. These parameters included the Deborah number, chemical reaction rate, Eckert number, Lewis number, Prandtl number, porosity parameter, and MHD parameter. A notable discovery emerging from this study was the inverse relationship observed between nondimensional concentration contours and the magnitude of the chemical reaction rate. Simultaneously, it was observed that higher values of the Maxwell fluid led to a rise in the thickness of the temperature boundary layer. These findings offer valuable insights into the intricate interplay of physical and chemical phenomena in convective flows involving complex fluid properties and boundary conditions. The temperature outline diminishes as the heat generation rate increases, while the concentration profile declines with an elevation in the chemical reaction rate.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"22 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140152928","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

Properties of new even and odd nonlinear coherent states with different parameters 具有不同参数的新型偶数和奇数非线性相干态的特性

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-09 DOI: 10.1142/s0217979224504277

Cheng Zhang, Rui-Jiao Miao, Xiao-Qiu Qi

{"title":"Properties of new even and odd nonlinear coherent states with different parameters","authors":"Cheng Zhang, Rui-Jiao Miao, Xiao-Qiu Qi","doi":"10.1142/s0217979224504277","DOIUrl":"https://doi.org/10.1142/s0217979224504277","url":null,"abstract":"We construct a class of nonlinear coherent states (NLCSs) by introducing a more general nonlinear function and study their nonclassical properties, specifically the second-order correlation function <math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><msup><mrow><mi>g</mi></mrow><mrow><mo stretchy=\"false\">(</mo><mn>2</mn><mo stretchy=\"false\">)</mo></mrow></msup><mo stretchy=\"false\">(</mo><mn>0</mn><mo stretchy=\"false\">)</mo></math>, Mandel parameter Q, squeezing, amplitude-squared squeezing and Wigner function of the optical field. The results indicate that the nonclassical properties of the new types of even and odd NLCSs crucially depend on the nonlinear functions. More concretely, we find that the new even NLCSs could exhibit the photon-bunching effect, whereas the new odd NLCSs could show the photon-antibunching effect. The degree of squeezing is also significantly affected by the parameter selection of these NLCSs. By employing various forms of nonlinear functions, it becomes possible to construct the NLCSs with diverse properties, thereby providing a theoretical foundation for the corresponding experimental investigations.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"25 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140153156","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

Characterizing elastic wave reflection in a semiconducting isotropic diffusive medium with temperature rate-dependent nonlocal theory 用与温度速率相关的非局部理论描述半导体各向同性扩散介质中的弹性波反射特性

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-09 DOI: 10.1142/s0217979224504344

Hashmat Ali, Iffat Sharif, Muhammad Jamal, Ehtsham Azhar

{"title":"Characterizing elastic wave reflection in a semiconducting isotropic diffusive medium with temperature rate-dependent nonlocal theory","authors":"Hashmat Ali, Iffat Sharif, Muhammad Jamal, Ehtsham Azhar","doi":"10.1142/s0217979224504344","DOIUrl":"https://doi.org/10.1142/s0217979224504344","url":null,"abstract":"In this paper, we explore the application of nonlocal theory to analyze the phenomenon of coupled thermoelastic wave reflection in a semiconducting diffusive medium, considering its temperature rate dependence. The governing equations are deconstructed using the Helmholtz vector rule, allowing us to delve into the behavior of the system. By calculating the dispersion relation in terms of propagation speed, we investigate four coupled longitudinal waves alongside an independent nondispersive transverse wave within the local medium. The cut-off frequencies for each wave are discussed, shedding light on their characteristics. Furthermore, we delve into the phenomenon of coupled longitudinal displacement waves at the medium’s boundary. Analytical derivations of amplitude ratios are presented, accompanied by graphical representations of their behavior, focusing on a semiconductor material such as copper. We examine the effects of physical parameters, including the nonlocal and diffusive parameters, on the obtained results. It is important to note that the existing literature primarily lacks consideration of diffusivity and plasma transportation. Lastly, we validate our findings by investigating the conservation of energy within the system.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"36 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140152994","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

Trapping paramagnetic molecules in a dynamic magnetic trap 在动态磁性陷阱中捕获顺磁分子

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-08 DOI: 10.1142/s0217979225500237

Sheng-Qiang Li, Jing Lin, Xue Chen, Nan-Nan Zhang

引用次数: 0

Electromagnetically induced absorption and transparency in a ladder-type atomic system with different dressing mechanisms 具有不同修整机制的阶梯型原子系统中的电磁诱导吸收和透明度

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-02 DOI: 10.1142/s0217979225500109

Hao-Wei Ti, Xiang-An Yan, Hao-Gong Liu, Xi-Xi Bai, Xiao-Rui Huang, Zhou Guo, Chen-Jie Wang, Dan-Dan Zhang, Xiaoxiang Han

{"title":"Electromagnetically induced absorption and transparency in a ladder-type atomic system with different dressing mechanisms","authors":"Hao-Wei Ti, Xiang-An Yan, Hao-Gong Liu, Xi-Xi Bai, Xiao-Rui Huang, Zhou Guo, Chen-Jie Wang, Dan-Dan Zhang, Xiaoxiang Han","doi":"10.1142/s0217979225500109","DOIUrl":"https://doi.org/10.1142/s0217979225500109","url":null,"abstract":"In a Doppler-broadened ladder-type Rubidium atomic system <math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mn>5</mn><msub><mrow><mi>S</mi></mrow><mrow><mn>1</mn><mo stretchy=\"false\">/</mo><mn>2</mn></mrow></msub></math>–<math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mn>5</mn><msub><mrow><mi>P</mi></mrow><mrow><mn>3</mn><mo stretchy=\"false\">/</mo><mn>2</mn></mrow></msub></math>–<math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mn>5</mn><msub><mrow><mi>D</mi></mrow><mrow><mn>5</mn><mo stretchy=\"false\">/</mo><mn>2</mn></mrow></msub></math>, three-photon electromagnetically induced absorption (EIA) and transparency (EIT) in two schemes of two coupling lasers with different propagation directions are comprehensively studied. Two coupling fields are entangled tightly with each other and induce constructive interference such that we observe EIA as two coupling fields are counter-propagating. Two coupling fields are independent and cause destructive interference such that only enhanced EIT occurs when two coupling fields are co-propagating, although all of the Doppler-broadened atoms satisfy the condition for three-photon resonance. The experimental results are coincided with the numerically calculated spectra using the dressed perturbation method. The mechanisms of EIT and EIA could also be understood by the dressed-state pictures.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"2013 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140047016","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

Hydrodynamic stability of Poiseuille flow in a bidisperse porous medium with slip effect 具有滑移效应的双分散多孔介质中 Poiseuille 流的流体力学稳定性

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-03-02 DOI: 10.1142/s0217979225500067

Shahizlan Shakir Hajool, Akil J. Harfash

{"title":"Hydrodynamic stability of Poiseuille flow in a bidisperse porous medium with slip effect","authors":"Shahizlan Shakir Hajool, Akil J. Harfash","doi":"10.1142/s0217979225500067","DOIUrl":"https://doi.org/10.1142/s0217979225500067","url":null,"abstract":"This study focuses on examining the hydrodynamic stability of an incompressible fluid flowing through a bidisperse porous medium. Specifically, the impact of slip boundary conditions on instability is investigated. The study looks at a scenario in which the Darcy theory is used for micropores and the Brinkman theory is used for macropores. An incompressible fluid is located within an unbound channel with a constant pressure gradient along its length in the system under investigation. The fluid flows laminarly along the pressure gradient, resulting in a stable parabolic velocity distribution that does not alter over time. Based on our observations, it appears that increasing the values of the slip parameter, permeability ratio, porous parameter, interaction parameter and Darcy Reynolds number leads to an improvement in the stability of the system. The spectrum behavior of eigenvalues in the Orr–Sommerfeld problem for Poiseuille flow exhibits significant sensitivity and is influenced by multiple factors, encompassing both the mathematical attributes of the problem and the specific numerical techniques utilized for approximation.","PeriodicalId":14108,"journal":{"name":"International Journal of Modern Physics B","volume":"22 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140047017","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

Electromagnetic field on a photothermal semiconducting voids medium under Lord–Shulman and refined multi-phase lag models in thermoelasticity 热弹性中 Lord-Shulman 和精炼多相滞后模型下光热半导体空隙介质上的电磁场

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-02-29 DOI: 10.1142/s0217979225500079

Zahra S. Hafed, S. M. Abo-Dahab, A. A. Kilany, Sameh E. Ahmed

引用次数: 0

Hidden skyrmion on the spin direction of the Majorana zero mode 马约拉纳零模自旋方向上的隐蔽天芒

IF 1.7 4区物理与天体物理

International Journal of Modern Physics B Pub Date : 2024-02-29 DOI: 10.1142/s0217979225500055

Xin Shang, Huimin Tang

引用次数: 0