International Journal of Theoretical Physics最新文献_第10页

Analytical and Phase Space Description of “Near” States 近 "状态的分析和相空间描述

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-16 DOI: 10.1007/s10773-024-05766-w

M. R. Bazrafkan, E. Nahvifard

引用次数: 0

Secure Multiparty Logical AND Based on Quantum Homomorphic Encryption and Its Applications 基于量子同态加密的安全多方逻辑 AND 及其应用

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-12 DOI: 10.1007/s10773-024-05773-x

Xinglan Zhang, Yunxin Xi

{"title":"Secure Multiparty Logical AND Based on Quantum Homomorphic Encryption and Its Applications","authors":"Xinglan Zhang, Yunxin Xi","doi":"10.1007/s10773-024-05773-x","DOIUrl":"10.1007/s10773-024-05773-x","url":null,"abstract":"<div><p>Secure multiparty computation is crucial in ensuring effective protection of participant’s privacy. Quantum homomorphic encryption technology is an effective method to facilitate the realization of quantum secure multiparty computation. The logical AND operation is a basic primitive of logical computation, often combined with the NOT operation to perform more complex logical operations. In the field of quantum computing, the Toffoli gate (composed of Clifford gate and T gate) required to implement the logical AND operation has relatively high requirements for the number and computational depth of T gates. This paper proposes a secure multiparty logical AND protocol that effectively reduces the usage and depth of T gates. Compared with previous quantum homomorphic encryption schemes, this protocol improves security based on quantum one time pad encryption and quantum teleportation, and can effectively resist various external and internal security threats including tampering attacks. The introduced quantum state commitment and auxiliary bit mechanism provides support for verifying the correctness of the calculation results. Subsequently, two important applications are derived: quantum multiparty private set intersection and quantum secure multiparty sum algorithm. Tests performed on the IBM Qiskit quantum simulator show the expected effectiveness of our method. The secure multiparty logical AND algorithm proposed in this paper is expected to be widely used in other secure multiparty computation scenarios.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142209418","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

Controlling of Steered Quantum Coherence in Non-Markovian System 控制非马尔可夫系统中的定向量子相干性

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-11 DOI: 10.1007/s10773-024-05775-9

Hu Ju-Ju, Ji Ying-Hua

引用次数: 0

Multiple Soliton Solutions of Generalized Reaction Duffing Model Arising in Various Mechanical Systems 各种机械系统中出现的广义反应杜芬模型的多重孤子解

IF 1.3 4区物理与天体物理

International Journal of Theoretical Physics Pub Date : 2024-09-11 DOI: 10.1007/s10773-024-05768-8

Sajawal A. Baloch, Muhammad Abbas, Farah A. Abdullah, Syed T. R. Rizvi, Ali Althobaiti, Aly R. Seadawy

{"title":"Multiple Soliton Solutions of Generalized Reaction Duffing Model Arising in Various Mechanical Systems","authors":"Sajawal A. Baloch, Muhammad Abbas, Farah A. Abdullah, Syed T. R. Rizvi, Ali Althobaiti, Aly R. Seadawy","doi":"10.1007/s10773-024-05768-8","DOIUrl":"10.1007/s10773-024-05768-8","url":null,"abstract":"<div><p>In this paper, we employ some ansatz transformations to investigate various nonlinear waves for a well-known model, the generalized reaction Duffing model, including lump soliton, rogue waves, breather waves, Ma-breather, and Kuznetsov-Ma-breather. The standard Duffing equation is expanded upon in the generalized Duffing model, which adds more terms to take into consideration for more complex behaviors. The generalized reaction Duffing model is useful in many domains, such as electrical engineering, biomechanics, climate research, seismic research, chaos theory, and many more, due to its rich behavior and nonlinear dynamic. Lump soliton is a robust, confined, self-reinforcing wave solution to non linear partial differential equations. Breather waves are periodic, specific solutions in nonlinear wave systems that preserve their amplitude and structure. Rogue waves, which pose a hazard to marine safety, are unexpectedly strong and sharp ocean surface waves that diverge greatly from the surrounding wave pattern. They frequently appear in solitary and apparently random situations. The solutions are graphically displayed using contour, 3D, and 2D graphs.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 9","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226513","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

Thermal Properties of the su(1, 1) Jaynes-Cummings Model under the Influence of the Stark Shift 斯塔克偏移影响下的苏(1, 1) 杰恩斯-康明斯模型的热特性

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/s10773-024-05738-0

S Mirzaei, A Chenaghlou, Y Alishamsi

{"title":"Thermal Properties of the su(1, 1) Jaynes-Cummings Model under the Influence of the Stark Shift","authors":"S Mirzaei, A Chenaghlou, Y Alishamsi","doi":"10.1007/s10773-024-05738-0","DOIUrl":"10.1007/s10773-024-05738-0","url":null,"abstract":"<div><p>We explore the thermal properties of a system including a single-mode cavity interacting with a two-level atom at temperature <i>T</i> under the effect of the Stark shift. Thus, the partition function and then the thermal density matrix of the atom-field system will be needed. Using the generators of the <span>(varvec{su(1,1)})</span> algebra, we first compute the total excitation number which commutes with the Hamiltonian of the system. Considering the total excitation number, the Hamiltonian is represented by a block diagonal matrix. We solve exactly our model and calculate the energy eigenvalues and corresponding eigenstates. We analyze the fidelity as numerical criterion of the closeness of the thermal atom-cavity system at two temperatures. The effect of the Stark shift coefficients on the fidelity can be studied. Moreover, we will examine the thermodynamical properties of the thermal atom-field system using the Helmholtz free energy, entropy, internal energy and heat capacity. The dependence of the temperature and Stark shift parameters on the thermodynamical properties will be discussed.</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":"142209424","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

Optimal Probabilistic Quantum Cloning in Rydberg Atoms Based on Dynamically Corrected Geometric Quantum Operations 基于动态校正几何量子运算的雷德堡原子最优概率量子克隆

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/s10773-024-05746-0

Chen Wang, Bing-Bing Liu, Meng-Ru Yun, Xiao-Yu Zhu, Shi-Lei Su

引用次数: 0

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