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Constant Mean Curvature Slices for the Schwarzschild-anti-de Sitter Spacetime 施瓦兹希尔德-反-德-西特时空的恒均值曲率切片
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-11-06 DOI: 10.1007/s10773-024-05819-0
Farrukh Haidar, Azad A. Siddiqui
{"title":"Constant Mean Curvature Slices for the Schwarzschild-anti-de Sitter Spacetime","authors":"Farrukh Haidar,&nbsp;Azad A. Siddiqui","doi":"10.1007/s10773-024-05819-0","DOIUrl":"10.1007/s10773-024-05819-0","url":null,"abstract":"<div><p>In this paper, slicing of the Schwarzschild-anti-de Sitter metric is discussed by spacelike hypersurfaces of constant mean curvature. For this purpose, the differential equation, satisfied by these hypersurfaces, in compactified Kruskal-Szekeres like coordinates is obtained, and solved numerically. Behavior of these hypersurfaces with respect to different parameters involved, is also discussed.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587874","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
Quasi-particle Propagation Across Semiconductor–Mott Insulator Interfaces 半导体-摩特绝缘体界面的准粒子传播
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-11-06 DOI: 10.1007/s10773-024-05814-5
Jan Verlage, Friedemann Queisser, Nikodem Szpak, Jürgen König, Peter Kratzer, Ralf Schützhold
{"title":"Quasi-particle Propagation Across Semiconductor–Mott Insulator Interfaces","authors":"Jan Verlage,&nbsp;Friedemann Queisser,&nbsp;Nikodem Szpak,&nbsp;Jürgen König,&nbsp;Peter Kratzer,&nbsp;Ralf Schützhold","doi":"10.1007/s10773-024-05814-5","DOIUrl":"10.1007/s10773-024-05814-5","url":null,"abstract":"<div><p>As a prototypical example for a heterostructure combining a weakly and a strongly interacting quantum many-body system, we study the interface between a semiconductor and a Mott insulator. Via the hierarchy of correlations, we derive and match the propagating or evanescent (quasi) particle solutions on both sides and assume that the interactions among the electrons in the semiconducting regions can be absorbed by an effective potential. While the propagation is described by a band-like dispersion in both the weakly and the strongly interacting case, the inverse decay length across the interface follows a different dependence on the band gap in the Mott insulator and the semiconductor. As one consequence, tunnelling through a Mott insulating layer behaves quite differently from a semiconducting (or band insulating) layer. For example, we find a strong suppression of tunnelling for energies in the middle between the upper and lower Hubbard band of the Mott insulator.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10773-024-05814-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587875","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
Tighter Bounds of Generalized Monogamy and Polygamy Relations 广义一夫一妻制和一夫多妻制关系的更严格界限
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-11-06 DOI: 10.1007/s10773-024-05823-4
Yue Cao, Naihuan Jing, Yiling Wang
{"title":"Tighter Bounds of Generalized Monogamy and Polygamy Relations","authors":"Yue Cao,&nbsp;Naihuan Jing,&nbsp;Yiling Wang","doi":"10.1007/s10773-024-05823-4","DOIUrl":"10.1007/s10773-024-05823-4","url":null,"abstract":"<div><p>We study generalized monogamy and polygamy relations for concurrence of assistance and negativity of assistance using parametrized bounds in general multi-partite quantum systems. The new method overcomes the shortcomings of previous studies where a method is only good at a particular region. We provide detailed examples to show why the new approach is effective in all regions.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587876","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
Mohand Transform Approach to Ulam-Type Stability of Linear Differential Equations 线性微分方程的乌兰型稳定性的莫罕德变换方法
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-11-05 DOI: 10.1007/s10773-024-05821-6
A. Selvam, S. Sabarinathana, Salah Boulaaras, Asma Alharbi
{"title":"Mohand Transform Approach to Ulam-Type Stability of Linear Differential Equations","authors":"A. Selvam,&nbsp;S. Sabarinathana,&nbsp;Salah Boulaaras,&nbsp;Asma Alharbi","doi":"10.1007/s10773-024-05821-6","DOIUrl":"10.1007/s10773-024-05821-6","url":null,"abstract":"<div><p>This study applies the Mohand transform approach to analyze stability results, specifically Ulam-Hyers stability of linear differential equations. We thoroughly examine the theoretical results and support them with well-fitted examples. We also establish the electrical circuit using the proposed method from an application standpoint.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579448","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
Investigation of the FCNC Couplings Between the Top Quark and the Photon in (gamma gamma ) and (gamma ^{*}gamma ^{*}) Collisions at the CLIC 在CLIC研究顶夸克和光子在(gamma gamma )和(gamma ^{*}gamma ^{*})碰撞中的FCNC耦合关系
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-11-04 DOI: 10.1007/s10773-024-05822-5
E. Alici
{"title":"Investigation of the FCNC Couplings Between the Top Quark and the Photon in (gamma gamma ) and (gamma ^{*}gamma ^{*}) Collisions at the CLIC","authors":"E. Alici","doi":"10.1007/s10773-024-05822-5","DOIUrl":"10.1007/s10773-024-05822-5","url":null,"abstract":"<div><p>The investigation of flavour-changing neutral current transitions(FCNC) involving the top quark are only possible with new theoretical frameworks that extend the Standard Model(SM), given that these transitions are almost entirely suppressed within the SM. In this regard, examining these transitions with extended theories beyond the SM may provide significant insights into future experiments. To this end, we present a phenomological study about the anomalous FCNC transitions via <span>(tqgamma )</span> couplings with effective field theory. Here, <span>({gamma gamma }{rightarrow } {textit{l}} {nu }_textit{l} b bar{q} )</span> , <span>(e^{+} e^{-} {rightarrow} e^{+} {gamma} {gamma} {rightarrow} e^{+} textit{l} {nu _textit{l}} b bar{q} {e^{-}} )</span>, <span>(gamma gamma {rightarrow } j bar{j} b bar{q} )</span> and <span>({e^{+}} {e ^{-}} {rightarrow } {e^{+}} {gamma } {gamma } {e^{-}} {rightarrow }{e^{+}} j bar{j} b bar{q} {e^{-}} )</span> processes are investigated for the CLIC at <span>(sqrt{s} =1.5)</span>TeV and 3 TeV. Thus, we have calculated the constraints at <span>(95{%})</span> confidence level on the <span>(BR(trightarrow qgamma ))</span>. As a result, the obtained constraints are at least one order of magnitude better than the available experimental ones.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573727","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
A Systematic Review of Quantum BenchMarking 量子基准测试的系统回顾
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-10-30 DOI: 10.1007/s10773-024-05811-8
Pranit Malhotra, Ajay Kumar, Sunita Garhwal
{"title":"A Systematic Review of Quantum BenchMarking","authors":"Pranit Malhotra,&nbsp;Ajay Kumar,&nbsp;Sunita Garhwal","doi":"10.1007/s10773-024-05811-8","DOIUrl":"10.1007/s10773-024-05811-8","url":null,"abstract":"<div><p>Quantum benchmarking methods are essential for evaluating quantum processors in various applications. The importance of quantum benchmarking has increased significantly over the past decades, as demonstrated by the growing number of published studies. In this review, 114 papers are considered, thoroughly examining different benchmarking types, including randomized benchmarking, gate set tomography, and process tomography. This paper offers a concise yet comprehensive overview of the research on quantum benchmarking methods and their applications. It will be a valuable resource for researchers and practitioners interested in effectively benchmarking quantum processors.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540590","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
Some Characterizations for Partial Classical Correlation States in Multipartite Quantum Systems 多方量子系统中部分经典相关态的一些特征
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-10-30 DOI: 10.1007/s10773-024-05815-4
Yinzhu Wang, Lihua Hao, Chen Cheng, Yanjing Sun, Ruifen Ma
{"title":"Some Characterizations for Partial Classical Correlation States in Multipartite Quantum Systems","authors":"Yinzhu Wang,&nbsp;Lihua Hao,&nbsp;Chen Cheng,&nbsp;Yanjing Sun,&nbsp;Ruifen Ma","doi":"10.1007/s10773-024-05815-4","DOIUrl":"10.1007/s10773-024-05815-4","url":null,"abstract":"<div><p>One crucial problem is to characterize and quantify the correlations in bipartite or multipartite states in the theory of quantum information. In this paper, we consider m-partite composite quantum systems <span>(H=H_{1}otimes H_{2}otimes cdots otimes H_{m})</span> with <span>(dim H&lt;+infty )</span>. We first introduce a concept of <i>k</i>-classical correlation states (<span>(1le kle m)</span>)(for short single classical correlation states when <span>(k=1)</span>, and fully classical correlation states when <span>(k=m)</span>); Next we give some mathematical representation for partial classical correlation states and a necessary condition for fully-classical correlation states; Finally, we present a correlation measure for <i>k</i>-classical correlation states based on the angle between quantum states, and prove that this correlation measure is well-defined, which possesses the basic physical properties of correlation measure.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540567","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 Rényi Entropy with Localization Characteristics 具有定位特征的量子雷尼熵
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-10-30 DOI: 10.1007/s10773-024-05816-3
Qi Han, Shuai Wang, Lijie Gou, Rong Zhang
{"title":"Quantum Rényi Entropy with Localization Characteristics","authors":"Qi Han,&nbsp;Shuai Wang,&nbsp;Lijie Gou,&nbsp;Rong Zhang","doi":"10.1007/s10773-024-05816-3","DOIUrl":"10.1007/s10773-024-05816-3","url":null,"abstract":"<div><p>This paper presents a localized treatment of quantum Rényi entropy. Specifically, based on the localized characteristics of Local Quantum Bernoulli Noises (LQBNs), a new definition of quantum Rényi entropy, that is, quantum Rényi entropy with localization characteristics, is given through the local density operator constructed by local conservative operators <span>(l_{k}^{circ } )</span>. We also verify that this new definition possesses properties such as unitary invariance, additivity, monotonicity, and weak subadditivity. Furthermore, through the monotonicity of the local quantum Rényi entropy, we derive the local quantum Rényi minimum entropy and the local quantum Rényi maximum entropy. The local quantum Rényi entropy can be used to study quantum entanglement and coherence. For instance, in the contexts of quantum phase transitions and quantum state transmission, the local quantum Rényi entropy can provide important insights into the flow of information and interactions within quantum systems.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 11","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540591","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
Echoes of Stars in Tracking Rastall Gravity 追踪拉斯塔尔引力中的恒星回声
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-10-25 DOI: 10.1007/s10773-024-05810-9
Kai Lin, Hongsheng Zhang, Xilong Fan, Chieh-Hung Chen, Yang-Yi Sun
{"title":"Echoes of Stars in Tracking Rastall Gravity","authors":"Kai Lin,&nbsp;Hongsheng Zhang,&nbsp;Xilong Fan,&nbsp;Chieh-Hung Chen,&nbsp;Yang-Yi Sun","doi":"10.1007/s10773-024-05810-9","DOIUrl":"10.1007/s10773-024-05810-9","url":null,"abstract":"<div><p>We develop a model of a star with uniform density within the context of tracking Rastall gravity, where the density of the effective dark matter closely follows that of dark energy. To ascertain the stability of this star, we conduct an analysis of the axial gravitational perturbations. Our findings reveal that echo wavelets naturally emerge within the axial gravitational waves when dark matter substantially influences the star’s construction. We argue that the fundamental cause of these echoes lies in the potential valley that resides near the star’s surface. This phenomenon provides a promising avenue for detecting Rastall dark energy through the ringdown phase of gravitational waves emitted by binary stars that are enriched with dark matter.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 10","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10773-024-05810-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518589","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
Effects of Noise and Fractional Derivative on the Exact Solutions of the Stochastic Conformable Fractional Fokas System 噪声和分数衍生物对随机可变分数福卡斯系统精确解的影响
IF 1.3 4区 物理与天体物理
International Journal of Theoretical Physics Pub Date : 2024-10-24 DOI: 10.1007/s10773-024-05812-7
Wen Liu, Changzhao Li, Chuanjian Wang
{"title":"Effects of Noise and Fractional Derivative on the Exact Solutions of the Stochastic Conformable Fractional Fokas System","authors":"Wen Liu,&nbsp;Changzhao Li,&nbsp;Chuanjian Wang","doi":"10.1007/s10773-024-05812-7","DOIUrl":"10.1007/s10773-024-05812-7","url":null,"abstract":"<div><p>This paper mainly investigates the exact solutions and their dynamical behaviors of the stochastic conformable fractional Fokas system (SFFs), offering a more realistic model for optical pulse propagation in monomode optical fibers. By the planar dynamical system method and the extended Kudryashov method, we derive various traveling wave solutions, including bright and dark solitary wave solutions, as well as periodic traveling wave solutions. Furthermore, we explore the impact of multiplicative noise and the order of the conformable derivative on the dynamical behaviors of both soliton solutions and periodic traveling wave solutions. Our findings reveal that the fractional order introduces oscillations in dark solitons and periodic traveling wave solutions, while multiplicative noise causes fluctuations in these solutions. Notably, under the combined influence of multiplicative noise and the conformable derivative, variations in the initial phase result in the fusion and fission of solitons. However, when the fractional order approaches 1, changes in the initial phase solely affect the position and amplitude of the soliton. These results provide a certain theoretical explanation for the phenomenon of optical pulse propagation in fiber optic communication systems, aiding in the understanding of the impact of stochastic factors and fractional order on the behavior of optical pulse propagation.</p></div>","PeriodicalId":597,"journal":{"name":"International Journal of Theoretical Physics","volume":"63 10","pages":""},"PeriodicalIF":1.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519006","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
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