International Journal of Theoretical Physics最新文献_第7页

Numerous Exact Two-Pick, M-Shaped, and W-Shaped Solutions of Wavelength-Division-Multiplexed Channels of Optical Fibre Transmission Systems Described by Coupled Nonlinear Schrödinger Equations 由耦合非线性薛定谔方程描述的光纤传输系统波分复用信道的大量精确二选一、M 型和 W 型解决方案

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-07 DOI: 10.1007/s10773-024-05771-z

Prakash Kumar Das, Mrinal Kanti Mondal

{"title":"Numerous Exact Two-Pick, M-Shaped, and W-Shaped Solutions of Wavelength-Division-Multiplexed Channels of Optical Fibre Transmission Systems Described by Coupled Nonlinear Schrödinger Equations","authors":"Prakash Kumar Das, Mrinal Kanti Mondal","doi":"10.1007/s10773-024-05771-z","DOIUrl":"10.1007/s10773-024-05771-z","url":null,"abstract":"<div><p>The coupled nonlinear Schrödinger equation, which appears as a model explaining the interactions between pulses in wavelength-division-multiplexed channels of optical fibre transmission systems, is studied in three different scenarios of solitons interactions. The travelling transformation is used to convert them into a stationary form, or nonlinear ODE. Then, RCAM is used to solve three different integrable cases of these systems. For every one of these generated solution’s boundedness requirements, three theorems are proposed and independently proven. To confirm the validity of the theorems, a few specific values of the parameters that meet the requirements of the theorems are taken, plotted, and different soliton profiles of the system are analysed. This study presents, for the first time, the appearance criteria for the W-shape, M-shape, and double-pick structure solition profiles together with their optimal locations. We investigate the ways in which the existence of several optima points governs the shape of solutions that emerge as multiple two-pick, M-shaped, and W-shaped solitons. The findings of the research may be useful in the development of birefringence controlled switching and bright and dark soliton fibre lasers.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209422","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

Optomechanically Induced Transparency of Double-Cavity Optomechanical System with (mathcal{P}mathcal{T}-)Symmetry and (mathcal{P}mathcal{T}-)Asymmetry 具有 $$mathcal{P}mathcal{T}-$ 对称性和 $$mathcal{P}mathcal{T}-$ 不对称的双腔光学机械系统的光学机械诱导透明度

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-07 DOI: 10.1007/s10773-024-05765-x

Yueming Wang

{"title":"Optomechanically Induced Transparency of Double-Cavity Optomechanical System with (mathcal{P}mathcal{T}-)Symmetry and (mathcal{P}mathcal{T}-)Asymmetry","authors":"Yueming Wang","doi":"10.1007/s10773-024-05765-x","DOIUrl":"10.1007/s10773-024-05765-x","url":null,"abstract":"<div><p>Opto-mechanical systems have been investigated both theoretically and experimentally characteristic of optomechanically induced transparency (OMIT), i.e., sharp transmission features controlled by a second control beam. We studied theoretically the opto-mechanically induced transparency (OMIT) properties of double-cavity opto-mechanical system with <span>(mathcal{P}mathcal{T}-)</span>symmetry and <span>(mathcal{P}mathcal{T})</span>-asymmetry within the setting of cavity quantum electrodynamics. By means of Fourier transformation we get the pump-probe spectroscopy exactly and find the second cavity plays important roles in the properties of probe beam transmission. The dip value of OMIT can reach zero which means perfect transmission. There appear two transparency windows for the probe beam in one resonator with the increasing power of control laser beam fed into the other resonator, especially the probe beam can obtain significant gain even without direct tunneling of photons between two resonators. We expect our results would be realized experimentally and be useful for the future designs of quantum functional devices.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209423","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 Light-by-Light Interaction in QED 关于 QED 中的逐光相互作用

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-06 DOI: 10.1007/s10773-024-05762-0

Salah Eddine Ennadifi

引用次数: 0

Bell’s and Mermin’s Inequalities, Entangled Coherent States and Unitary Operators 贝尔和梅明不等式、纠缠相干态和单元算子

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-06 DOI: 10.1007/s10773-024-05764-y

S. P. Sorella

引用次数: 0

Variation of the Influence of Atangana-Conformable Time-Derivative on Various Physical Structures in the Fractional KP-BBM Model 分式 KP-BBM 模型中阿坦加纳可变时差对各种物理结构的影响变化

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-05 DOI: 10.1007/s10773-024-05767-9

Marwan Alquran

引用次数: 0

Cyclic Controlled Assisted Cloning Via A Hyper-Entangled State 通过超纠缠状态进行循环可控辅助克隆

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-05 DOI: 10.1007/s10773-024-05725-5

Jin Shi

{"title":"Cyclic Controlled Assisted Cloning Via A Hyper-Entangled State","authors":"Jin Shi","doi":"10.1007/s10773-024-05725-5","DOIUrl":"10.1007/s10773-024-05725-5","url":null,"abstract":"<div><p>Two novel schemes for symmetry deterministic cyclic controlled assisted cloning and asymmetry deterministic cyclic controlled assisted cloning by using a three-particle hyper-entangled state as the quantum channel are proposed in this paper. The first stage of scheme for symmetry deterministic cyclic controlled assisted cloning requires symmetry deterministic cyclic controlled teleportation. Three distant parties Alice, Bob and Charlie can simultaneous teleport an arbitrary unknown one-qubit state each other via Bell-state measurement, Hadamard operation, single-particle projective measurement, and appropriate unitary transformation. In the second stage of scheme for symmetry deterministic cyclic controlled assisted cloning, they can obtain a perfect copy of original unknown state with assistance from different state preparers, respectively. In the first stage of scheme for asymmetry deterministic cyclic controlled assisted cloning, Alice can teleport an arbitrary unknown two-qubit state at distant Bob’s site under the control of Charlie, Bob can teleport an arbitrary unknown four-dimensional single-particle state at distant Charlie’s site under the control of Alice, and Charlie can teleport an arbitrary unknown single-qubit state at distant Alice’s site under the control of Bob simultaneously. They can obtain a perfect copy of original unknown state with assistance from different state preparers in the second stage of scheme for asymmetry deterministic cyclic controlled assisted cloning, respectively.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209428","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

Physically Viable Imperfect Fluid Models of Compact Stars 物理上可行的紧凑恒星不完全流体模型

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-04 DOI: 10.1007/s10773-024-05752-2

Mahesh Kumar, Jitendra Kumar, Ashok Kumar

引用次数: 0

The Two-Phases Proposal for Inflation in the Constant-Roll Field with f(Q) Gravity 具有 f(Q) 引力的恒定滚动场中的膨胀两阶段方案

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-03 DOI: 10.1007/s10773-024-05758-w

K. Kurt, Sukru Gunes, A. I. Keskin

引用次数: 0

Insights into the time Fractional Belousov-Zhabotinsky System Arises in Thermodynamics 洞察热力学中出现的时间分数别洛乌索夫-扎博金斯基系统

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-03 DOI: 10.1007/s10773-024-05770-0

M. L. Rupa, K. Aruna, K. Raghavendar

{"title":"Insights into the time Fractional Belousov-Zhabotinsky System Arises in Thermodynamics","authors":"M. L. Rupa, K. Aruna, K. Raghavendar","doi":"10.1007/s10773-024-05770-0","DOIUrl":"10.1007/s10773-024-05770-0","url":null,"abstract":"<div><p>This article employs the Shehu Adomian decomposition method to derive approximate solutions for the time-fractional Belousov-Zhabotinsky system, a phenomenon prevalent in the field of thermodynamics. This model offers a deep understanding of the core principles of nonlinear dynamics in intricate systems. This model is additionally employed to investigate bifurcations, chaotic dynamics, and other nonlinear phenomena in chemical processes. The advantage of the suggested method is that, unlike the usual Adomian process, it doesn’t involve figuring out the fractional derivative or integrals in the recursive mechanism. This makes it simple to evaluate series terms. We present Caputo, Caputo-Fabrizio, and Atangana-Baleanu in the Caputo sense fractional derivatives with the proposed method to enhance the comprehension of this intricate mechanism. We have presented various 2D and 3D graphical visualizations of the obtained solutions to demonstrate the model behaviour and the effects of the derived results by varying the fractional order. The obtained results are highly consistent with the q-homotopy analysis transform method, the fractional reduced differential transform method, and the double Laplace transform method. We also present the convergence and uniqueness of the proposed system. The results obtained with the proposed method indicate that it is simple to implement and computationally very attractive.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209434","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 Construction of Hermitian Self-Orthogonal Codes Over (F_9) and Their Application 关于在 $$F_9$$ 上构建赫米特自正交编码及其应用

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/s10773-024-05761-1

Zhihao Li, Ruihu Li, Chaofeng Guan, Hao Song

引用次数: 0