International Journal of Theoretical Physics最新文献

Nonclassicality and Sub-Planck Structures of Photon Subtracted Compass States

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-03-01 DOI: 10.1007/s10773-025-05938-2

Amit Das, Sobhan Sounda

引用次数: 0

Black Hole Optics and Greybody Factors in the Presence of Generalized Chaplygin-Jacobi Dark Fluid

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-28 DOI: 10.1007/s10773-025-05926-6

Shahid Chaudhary, Muhammad Danish Sultan, Adnan Malik, Yousef Mohammad Alanazi, Abdulrahman Bin Jumah, Asifa Ashraf

{"title":"Black Hole Optics and Greybody Factors in the Presence of Generalized Chaplygin-Jacobi Dark Fluid","authors":"Shahid Chaudhary, Muhammad Danish Sultan, Adnan Malik, Yousef Mohammad Alanazi, Abdulrahman Bin Jumah, Asifa Ashraf","doi":"10.1007/s10773-025-05926-6","DOIUrl":"10.1007/s10773-025-05926-6","url":null,"abstract":"<div><p>We investigate black hole solution within the framework of a generalized Chaplygin-Jacobi dark fluid background, focusing on perturbations and the greybody factor in this intriguing model. This model holds significance due to its characterization by two critical parameters <span>(alpha )</span> and <span>(beta )</span> which signify the deviation from the Schwarzschild black hole and the degree of anisotropy in the dark fluid respectively. We study the time evolution of the black hole by focusing on these key parameters, demonstrating that they significantly influence the damping and oscillation frequencies. Additionally, we evaluate the greybody factor bounds for the black hole under consideration. The key parameters <span>(alpha )</span> and <span>(beta )</span> significantly affect the bounds of the greybody factors, indicating that lower-frequency radiation can escape the black hole, while higher-frequency radiation is more effectively trapped. This highlights the substantial influence of <span>(alpha )</span> and <span>(beta )</span> on the characteristics of the black hole. Thus, we investigate the influence of these parameters on the optical properties of the black hole. By considering both static and infalling accretion models, we explore the impacts of <span>(alpha )</span> and <span>(beta )</span> on the black hole’s shadows and photon rings.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513451","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

Exploring the Gross-Pitaevskii Model in Bose-Einstein Condensates and Communication Systems: Features of Solitary Waves and Dynamical Analysis

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-28 DOI: 10.1007/s10773-025-05937-3

Muhammad Ajmal, Jan Muhammad, Usman Younas, Ejaz Hussian, Mohammed El- Meligy, Mohamed Sharaf

{"title":"Exploring the Gross-Pitaevskii Model in Bose-Einstein Condensates and Communication Systems: Features of Solitary Waves and Dynamical Analysis","authors":"Muhammad Ajmal, Jan Muhammad, Usman Younas, Ejaz Hussian, Mohammed El- Meligy, Mohamed Sharaf","doi":"10.1007/s10773-025-05937-3","DOIUrl":"10.1007/s10773-025-05937-3","url":null,"abstract":"<div><p>The Gross-Pitaevskii Equation (GPE), which belongs to the class of nonlinear Schrödinger equations is recognized for its applications in diverse fields such as Bose-Einstein Condensates and optical fiber. In this study, the dynamic behaviors of various wave solutions to the M-fractional nonlinear Gross-Pitaevskii equation are examined. Intriguing insights into the mechanisms regulating the intricate wave patterns of the model are offered through this investigation. To secure the solutions, including complex, bright, dark, combined, and singular soliton solutions, the Kumar-Malik method, the modified generalized exponential rational function method, and the generalized multivariate exponential rational integral function method are substantially applied. The fractional parametric effects on solitary waves are observed graphically. Moreover, the Galilean transformation is adopted, and bifurcation, sensitivity, chaotic behavior, 2D and 3D phase portraits, Poincaré maps, time series analysis, and sensitivity to multistability under different conditions are explored.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143513407","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 Sectorial Photon Theories Reconstructing Einstein’s Early Fusion Picture for Light

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-25 DOI: 10.1007/s10773-025-05928-4

Alfred Rieckers

{"title":"On Sectorial Photon Theories Reconstructing Einstein’s Early Fusion Picture for Light","authors":"Alfred Rieckers","doi":"10.1007/s10773-025-05928-4","DOIUrl":"10.1007/s10773-025-05928-4","url":null,"abstract":"<div><p>This is the second part of a pair of companion papers devoted to an analysis of Einstein’s fusion picture for light. While in the foregoing paper “An Actual Discusion of Einstein’s Early Fusion Picture for Photons and Classical Maxwell Fields” (referred to as Rieckers 2025) our conclusions ended with the historical <i>ab initio</i> motivation and mathematical elaboration of a multi-photon theory in Fock space, we now start from the non–separable C*-Weyl algebra gained by abstracting the Fock–represented Weyl algebra. To the rich state space of this antiliminary observable algebra we apply notions of a convex state space approach to identify sub–theories that cover classical field states (including the vacuum with classical zero–field), that are possibly decorated by photonic quantum noise. The main emphasis is laid on direct integrals over irreducible, disjoint representations of the C*-Weyl algebra, decomposing the effective photon theory into sectors. Certain limits of smeared central field operators suggest a mathematical realization of Einstein’s early photon notion consisting of an energy point surrounded by a local force field (respective wave function). Macroscopic classical Maxwell fields are gained by superposing the expectation values of products of those composite photon operators. The ontological status of the explicated photon notion is discussed. Connections to Einstein’s historic photon theory, summarized in Rieckers (2025), as well as to quantum optical applications are hinted at throughout the paper.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10773-025-05928-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Actual Discussion of Einstein’s Early Fusion Picture for Photons and Classical Maxwell Fields

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-25 DOI: 10.1007/s10773-025-05927-5

Alfred Rieckers

{"title":"An Actual Discussion of Einstein’s Early Fusion Picture for Photons and Classical Maxwell Fields","authors":"Alfred Rieckers","doi":"10.1007/s10773-025-05927-5","DOIUrl":"10.1007/s10773-025-05927-5","url":null,"abstract":"<div><p>This is the first part of a pair of companion papers devoted to an analysis of Einstein’s fusion picture for light-quanta (subsequently also referred to as “photons”) with classical electromagnetic fields that he formulated in 1909 via a purely verbal description. There, the overlap of many of the hypothetical local force fields, surrounding the photonic energy points, should produce the well–known classical Maxwell fields. We claim that, alone from such a logical connection, that apparently did not receive sufficient attention in the literature, one may draw essential conclusions on the photon states. In the present paper, we give a historical overview of Einstein’s photon conceptions until 1927. We extract hints from his formulations, that lead from his local force fields to Schrödinger wave functions, which reproduce the conserved integrals for energy, momentum, and angular momentum of Maxwell theory in form of Hilbert space expectations. Also a preliminary multi–photon theory, including Glauber states, is shown to be motivated by Einstein’s composite photons with possibly (incoherently!) overlapping force fields. In the resulting Fock space theory, gained by symmetrizing the many–photon states the goal of a fusion theory is, however, not realizable. In the subsequent companion paper “On sectorial photon theories reconstructing Einstein’s early fusion picture for light” (referred to as Rieckers 2025) our conclusions are extended to photon states that surpass Fock space theory by describing actual infinitely many photons. These are shown to cover also classical light states in terms of collective structures. Appealing to the more recent mathematical tools of convex state space approach and algebraic quantum field theory, we suggest there mathematical realizations of Einstein’s fusion program.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10773-025-05927-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Inflationary Quartic Hilltop Model in a Modified Gravity and Its Comparison with the Observations

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-21 DOI: 10.1007/s10773-025-05922-w

Feyzollah Younesizadeh, Davoud Kamani

引用次数: 0

Tight upper bound of genuine four party Svetlichny type nonlocality

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-20 DOI: 10.1007/s10773-025-05925-7

Sk Sahadat Hossain, Biswajit Paul, Indrani Chattopadhyay, Debasis Sarkar

引用次数: 0

Mass Spectroscopy of Charmonium Using a Screened Potential

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-19 DOI: 10.1007/s10773-025-05924-8

Sreelakshmi M, Akhilesh Ranjan

引用次数: 0

Interplay of Inter-Dot Tunneling and Quantum Interference under Optical Vortex Beams to Induce Spatially Dependent Optical Effects in Quantum Dot Molecules

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-19 DOI: 10.1007/s10773-025-05915-9

Haobing Wang

{"title":"Interplay of Inter-Dot Tunneling and Quantum Interference under Optical Vortex Beams to Induce Spatially Dependent Optical Effects in Quantum Dot Molecules","authors":"Haobing Wang","doi":"10.1007/s10773-025-05915-9","DOIUrl":"10.1007/s10773-025-05915-9","url":null,"abstract":"<div><p>In this work, we investigate the spatially dependent optical properties of quantum dot (QD) molecules interacting with optical vortex beams. By analyzing the absorption and dispersion profiles of a weak probe field, we uncover the influence of tunneling and quantum interference mechanisms on the system's response. The optical vortex beams, characterized by their orbital angular momentum (OAM), introduce azimuthal dependence in the susceptibility of the QD system. When tunneling alone is present, petal-like patterns emerge in the spatial profiles, with their symmetry determined by the OAM of the signal field. These patterns undergo rotation in the azimuthal plane as the relative phase of the applied fields varies. Similarly, when quantum interference dominates, distinct symmetry-driven features arise, demonstrating phase-sensitive spatial modulation. Notably, when both tunneling and quantum interference are present, the profiles exhibit reduced absorption and gain due to the combined effects of state delocalization and modified decay pathways. Our findings highlight the complex interplay between tunneling and quantum interference, offering pathways for controlling light-matter interactions in QD systems. These results pave the way for innovative applications in structured light technologies, optical switching, and quantum information processing.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438689","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

Locally Discriminating Nonlocal Tripartite Orthogonal Product States with Entanglement Resource

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2025-02-18 DOI: 10.1007/s10773-025-05923-9

Tian-Qing Cao, Bo-Hui Gao, Qiao-Ling Xin

{"title":"Locally Discriminating Nonlocal Tripartite Orthogonal Product States with Entanglement Resource","authors":"Tian-Qing Cao, Bo-Hui Gao, Qiao-Ling Xin","doi":"10.1007/s10773-025-05923-9","DOIUrl":"10.1007/s10773-025-05923-9","url":null,"abstract":"<div><p>In recent years, using entanglement resources to assist the local discrimination of orthogonal quantum states has attracted wide attention. However, many studies mainly focus on entanglement-assisted local discrimination in bipartite systems, and there are relatively few in multipartite states. In this paper, for the nonlocal set of <span>(3d-3)</span> orthogonal product states in <span>(dotimes dotimes d)</span> <span>((dge 3))</span> constructed by Zhu et al. (Quantum Inf. Process. 21, 252, 2022), we propose a method of using an ancillary <span>(dotimes d)</span> maximally entangled state to realize the local perfect discrimination. Firstly, with a <span>(3otimes 3)</span> maximally entangled state as an auxiliary resource, we present a method to exactly identify the locally indistinguishable 6 orthogonal product states in <span>(3otimes 3otimes 3)</span> by local operations and classical communication (LOCC). Then the distinguishing method can be generalized to the <span>(3d-3)</span> states in <span>(dotimes dotimes d)</span>. These results not only reveal the phenomenon of less nonlocality with more entanglement, but also help us better realize the usefulness of entanglement in the local discrimination of quantum states.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"64 3","pages":""},"PeriodicalIF":1.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438667","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