International Journal of Theoretical Physics最新文献_第8页

Charged Black Hole with Inverse Electrodynamics 反电动力学的带电黑洞

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-02 DOI: 10.1007/s10773-024-05760-2

Marcos V. de S. Silva

引用次数: 0

(C^3) Matching Conditions for Anisotropic Fluids 各向异性流体的 $$C^3$$ 匹配条件

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-31 DOI: 10.1007/s10773-024-05740-6

Antonio C. Gutiérrez-Piñeres, Hernando Quevedo

引用次数: 0

Higher-order Nonclassicalities in Hybrid Coherent States 混合相干态的高阶非经典性

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-31 DOI: 10.1007/s10773-024-05748-y

Sandip Kumar Giri, Biswajit Sen

引用次数: 0

On Stochastic Pure-Cubic Optical Soliton Solutions of Nonlinear Schrödinger Equation Having Power Law of Self-Phase Modulation 论具有自相调制幂律的非线性薛定谔方程的随机纯立方体光学孤子解

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-29 DOI: 10.1007/s10773-024-05756-y

Aydin Secer, Ismail Onder, Handenur Esen, Neslihan Ozdemir, Melih Cinar, Hasan Cakicioglu, Selvi Durmus, Muslum Ozisik, Mustafa Bayram

{"title":"On Stochastic Pure-Cubic Optical Soliton Solutions of Nonlinear Schrödinger Equation Having Power Law of Self-Phase Modulation","authors":"Aydin Secer, Ismail Onder, Handenur Esen, Neslihan Ozdemir, Melih Cinar, Hasan Cakicioglu, Selvi Durmus, Muslum Ozisik, Mustafa Bayram","doi":"10.1007/s10773-024-05756-y","DOIUrl":"10.1007/s10773-024-05756-y","url":null,"abstract":"<div><p>In this study, we focus on the stochastic pure-cubic optical solitons of the nonlinear Schrödinger equation, characterized by a parabolic law of nonlinearity. The nonlinear Schrödinger equation models are crucial for simulating pulse propagation in optical fibers especially ultrashort pulses. To obtain optical soliton solutions, we employ the effective and well-known the new Kudryashov and the generalized Kudryashov methods. Through these methods, we successfully derive dark, bright, and singular optical soliton solutions. Our findings are illustrated with 2D and 3D graphics for clarity. A significant aspect of our study is the inclusion of stochasticity in the model. We specifically examine the impact of white noise on the solutions. This effect is detailed in the results section, with corresponding graphs. Throughout our research, we did not encounter any restrictive factors that hindered access to the results. Ultimately, considering the growing number of studies on optical fibers, our work stands out by being the first to obtain optical solutions for this specific model and by investigating the influence of stochastic theories on wave behavior.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209441","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

Impact of Radial Perturbations on Expansion-free Anisotropic Fluid Spheres in D-dimensional Modified Gravity 径向扰动对 D 维修正重力中无膨胀各向异性流体球的影响

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-29 DOI: 10.1007/s10773-024-05757-x

Bander Almutairi, M. Z. Bhatti, M. Yousaf, Z. Yousaf, A. S. Khan

{"title":"Impact of Radial Perturbations on Expansion-free Anisotropic Fluid Spheres in D-dimensional Modified Gravity","authors":"Bander Almutairi, M. Z. Bhatti, M. Yousaf, Z. Yousaf, A. S. Khan","doi":"10.1007/s10773-024-05757-x","DOIUrl":"10.1007/s10773-024-05757-x","url":null,"abstract":"<div><p>In this manuscript, we have continued the work of Herrera et al. (Gen. Relativ. Gravit. <b>44</b>, 1143, 2012) to investigate the instability of non-static spheres supported by anisotropic matter configuration in the background of D-dimensional Einstein gravity. For this purpose, we assume that our relativistic sphere undergoes adiabatic evolution with a vanishing expansion scalar condition. We compute gravitational field equations, conservation equations, and junction conditions in D-dimensional Einstein theory. After considering the evolution of the systems under an expansion-free background, some significant constraints are established by using a perturbation scheme. This leads us to develop the dynamical instability of expansion-free anisotropic fluid spheres in the Newtonian (N) and Post-Newtonian (PN) domains. After focusing on the N and PN eras, our study reveals that the adiabatic index (<span>(Gamma )</span>), does not contribute to the instability ranges in these domains. Instead, these ranges are being determined solely by the anisotropy of fluid pressure, D-dimensional Einstein gravity parameter, and the radial energy density profile.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209439","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

Dynamics of Bifurcation, Chaos, Sensitivity and Diverse Soliton Solution to the Drinfeld-Sokolov-Wilson Equations Arise in Mathematical Physics 数学物理学中出现的德林费尔德-索科洛夫-威尔逊方程的分岔、混沌、敏感性和多样孤子解的动力学问题

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-29 DOI: 10.1007/s10773-024-05759-9

Laila A. AL-Essa, Mati ur Rahman

{"title":"Dynamics of Bifurcation, Chaos, Sensitivity and Diverse Soliton Solution to the Drinfeld-Sokolov-Wilson Equations Arise in Mathematical Physics","authors":"Laila A. AL-Essa, Mati ur Rahman","doi":"10.1007/s10773-024-05759-9","DOIUrl":"10.1007/s10773-024-05759-9","url":null,"abstract":"<div><p>In this study, we present an amalgamation of solitary wave solutions for the fractional coupled Drinfeld-Sokolov-Wilson (FCDSW) equations, a versatile mathematical model with significant applications in fluid dynamics, plasma physics, and nonlinear dynamics. By leveraging the two recently developed computational approaches, namely the modified Sardar sub-equation (MSSE) method and the improved <span>(mathbb {F})</span>- expansion method, we manifested the novel soliton solutions in the form of dark, dark-bright, bright-dark, singular, periodic, exponential, and rational forms. Furthermore, we also extracted <i>W</i>-shape, <i>V</i>-shape, mixed trigonometric, and hyperbolic soliton wave solutions, which are not reported in previously. Also, the modulation instability (MI) of the proposed model is also examined. To further understand the dynamics of the FCDSW equations, we conducted a detailed bifurcation analysis to investigate the bifurcation events exhibited by these equations. A sensitivity analysis was also performed to assess the model’s robustness against variations in initial conditions and parameters, offering valuable insights into the system’s susceptibility to perturbations. We proved the effectiveness of our suggested techniques in the analysis of the FCDSW equations using analytical tools and numerical simulations. Our results provide new insights into the behavior and solutions of the FCDSW equations and enhance the mathematical tools for investigating nonlinear partial differential equations (NLPDEs). These findings have potential applications in fields like fluid flow modeling, wave propagation in plasmas, and the study of nonlinear optical phenomena in physics and applied mathematics.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209440","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

Quantum Visual Secret Sharing Based on Position Superposition 基于位置叠加的量子视觉秘密共享

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-28 DOI: 10.1007/s10773-024-05753-1

Meng-Yuan Zhao, Zi-Ming Wu, Bin Yan, Jeng-Shyang Pan, Hong-Mei Yang

{"title":"Quantum Visual Secret Sharing Based on Position Superposition","authors":"Meng-Yuan Zhao, Zi-Ming Wu, Bin Yan, Jeng-Shyang Pan, Hong-Mei Yang","doi":"10.1007/s10773-024-05753-1","DOIUrl":"10.1007/s10773-024-05753-1","url":null,"abstract":"<div><p>Quantum visual secret sharing scheme combines the traditional visual secret sharing scheme with quantum properties to improve the security of secret information. However, all existing quantum visual secret sharing schemes encode a single pixel as a quantum superposition state. Each pixel requires <b><i>n</i></b> qubits for encoding. The number of qubits required grows proportionally to the number of pixels, which is unfavorable when the secret image is large. To reduce the number of qubits used, we propose a <b><i>(n, n)</i></b>-threshold quantum visual secret sharing scheme based on position superposition. In the secret sharing phase, the position and the encoded color corresponding to the position of the image are encoded as a quantum superposition state simultaneously. The whole secret image is encoded only once instead of encoding individual pixels. Only <span>(varvec{2m+n})</span> qubits are required for a secret image of size <span>(varvec{2^m times 2^m})</span>. Then, the qubits encoding the position and the color of the secret image are distributed to <b><i>n</i></b> participants. In the recovery phase, <b><i>n</i></b> participants work together to recover the secret image by a quantum XOR operation on the qubits encoding the color. Simulations have been carried out to verify the practical feasibility of this scheme. Our scheme reduces the number of qubits used in the secret sharing process compared to previous quantum visual secret sharing schemes. In addition, there is no need to design the codebook in advance and the secret image can be fully recovered.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209442","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

Three Dimensional Exploration of the Dynamics of Bell Diagonal States 贝尔对角线状态动力学的三维探索

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-27 DOI: 10.1007/s10773-024-05731-7

Varsha Sambhaje, Anju Chaurasia

{"title":"Three Dimensional Exploration of the Dynamics of Bell Diagonal States","authors":"Varsha Sambhaje, Anju Chaurasia","doi":"10.1007/s10773-024-05731-7","DOIUrl":"10.1007/s10773-024-05731-7","url":null,"abstract":"<div><p>Within the framework of quantum information theory, the performance of conventional 2-D techniques is often unsatisfactory for the study of Bell states that hold a unique status as maximally entangled states. Therefore, 3-D approaches are increasingly employed to achieve more accurate and detailed analysis, offering improved performance and insights in complex scenarios. Among the diverse background of mixed two-qubit states, certain configurations exhibit unique quantum correlations that harness advanced quantum information processing tasks such as Bell diagonal states. Although, these states may appear superficially simple and exhibit a rich spectrum of correlations. The present research employs a methodology that involves a convex combination of distinct Bell states to generate the entire class of Bell diagonal states. This work explores the time evolution of Bell diagonal states, when exposed to various quantum channels and investigates the dynamics of quantum correlations such as entanglement, discord, and state of separability. Finally, the behaviour of Bell diagonal states is analysed and results are compared between theory and practice. A threedimensional visual approach is used to illustrate a deeper understanding of various quantum features and dynamic behaviour of the Bell diagonal states.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209443","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

On the Degrees of Freedom Count on Singular Phase Space Submanifolds 论奇异相空间子曼形上的自由度计数

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-26 DOI: 10.1007/s10773-024-05741-5

Alexey Golovnev

引用次数: 0

Higgs Boson Decay into (D^{*pm }) Meson Via Fragmentation 希格斯玻色子通过碎片衰变为 $$D^{*pm }$ 介子

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-08-26 DOI: 10.1007/s10773-024-05755-z

T. Osati, H. Pegah

引用次数: 0