Communications in Theoretical Physics最新文献

The extended Adomian decomposition method and its application to the rotating shallow water system for the numerical pulsrodon solutions 扩展阿多米安分解法及其在旋转浅水系统中的应用，用于数值脉动求解

Communications in Theoretical Physics Pub Date : 2024-07-25 DOI: 10.1088/1572-9494/ad674f

Hongli An, Liying Hou, Manwai Yuen

{"title":"The extended Adomian decomposition method and its application to the rotating shallow water system for the numerical pulsrodon solutions","authors":"Hongli An, Liying Hou, Manwai Yuen","doi":"10.1088/1572-9494/ad674f","DOIUrl":"https://doi.org/10.1088/1572-9494/ad674f","url":null,"abstract":"\u0000 The rotating shallow water system is an important physical model, which has been widely used in many scientific areas, such as fluids, hydrodynamics, geophysics, oceanic and atmospheric dynamics. In this paper, we extend the application of the Adomian decomposition method from the single equation to the coupled system to investigate the numerical solutions of the rotating shallow water system with an underlying circular paraboloidal basin. By introducing some special initial values, we obtain a kind of interesting approximate pulsrodon solutions corresponding to pulsating elliptic warm-core rings, which takes the form of realistic series solutions. Numerical results reveal that the numerical pulsrodon solutions can quickly converge to the exact solutions derived by Rogers and An, which fully shows the efficiency and accuracy of the proposed method. It is pointed out that the method proposed can be effectively used to construct numerical solutions of many nonlinear mathematical physics equations. The results obtained provide some potential theoretical guidances for experts to study the related phenomena in geography, oceanic and atmospheric science.","PeriodicalId":508917,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141804015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Impact of Weak Measurements on Exciton-Exciton Interactions 探索弱测量对激子-激子相互作用的影响

Communications in Theoretical Physics Pub Date : 2024-07-23 DOI: 10.1088/1572-9494/ad666b

F. Siyouri, Olivier Giraud, yassine hassouni

{"title":"Exploring the Impact of Weak Measurements on Exciton-Exciton Interactions","authors":"F. Siyouri, Olivier Giraud, yassine hassouni","doi":"10.1088/1572-9494/ad666b","DOIUrl":"https://doi.org/10.1088/1572-9494/ad666b","url":null,"abstract":"\u0000 In our study of super quantum discord between two excitonic qubits inside a coupled semiconductor quantum dots system, our primary focus is to uncover the impact of weak measurement on its quantum characteristics. To achieve this, we analyze how varying the measurement strength x, affects this super quantum correlation in the presence of thermal effects. Additionally, we assess the effect of this variation on the system’s evolution against its associated quantum parameters; external electric fields, exciton-exciton dipole interaction energy and Förster interaction. Our findings indicate that adjusting x to smaller values effectively enhances super quantum correlation, making weak measurements act as a catalyst. This adjustment ensures its robustness against thermal effects while preserving the non-classical attributes of system. Furthermore, our study unveils that the effect of weak measurements on this latter surpasses the quantum effects associated with the system. Indeed, manipulating the parameter x allows weak measurement to function as a versatile tool for modulating quantum characteristics and controlling exciton-exciton interactions within the coupled semiconductor quantum dots system.","PeriodicalId":508917,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141811061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electromagnetic wave scattering in plasma beam driven waveguides under strong magnetic field 强磁场下等离子体束驱动波导中的电磁波散射

Communications in Theoretical Physics Pub Date : 2024-07-23 DOI: 10.1088/1572-9494/ad666d

Shahana Rizvi, Muhammad Afzal

引用次数: 0

Eikonal Approximation for Floquet Scattering Floquet 散射的 Eikonal 近似值

Communications in Theoretical Physics Pub Date : 2024-07-19 DOI: 10.1088/1572-9494/ad6550

Yaru Liu, Peng Zhang

引用次数: 0

High dimensional nonlinear variable separation solutions and novel wave excitations for the (4+1)-dimensional Boiti-Leon-Manna-Pempinelli equation (4+1)-densional Boiti-Leonon-Manna-Pempinelli 方程的高维非线性变量分离解和新型波激励

Communications in Theoretical Physics Pub Date : 2024-07-19 DOI: 10.1088/1572-9494/ad6553

Z. Liang, Xiao-yan Tang, Wei Ding

{"title":"High dimensional nonlinear variable separation solutions and novel wave excitations for the (4+1)-dimensional Boiti-Leon-Manna-Pempinelli equation","authors":"Z. Liang, Xiao-yan Tang, Wei Ding","doi":"10.1088/1572-9494/ad6553","DOIUrl":"https://doi.org/10.1088/1572-9494/ad6553","url":null,"abstract":"\u0000 Considering the importance of higher dimensional equations widely applied to real nonlinear problems, many (4+1)-dimensional integrable systems have been established through uplifting the dimensions of their corresponding lower dimensional integrable equations. Recently, an integrable (4+1)-dimensional extension of the Boiti-Leon-Manna-Pempinelli (4DBLMP) equation has been proposed, which can also be considered as an extension of the famous Korteweg-de Vries equation applicable in fluids, plasma physics, and so on. It is shown that new higher dimensional variable separation solutions with several arbitrary lower dimensional functions can also be obtained by means of the mulitilinear variable separation approach for the 4DBLMP equation. In addition, making advantages of the explicit expressions of the new solutions, versatile (4+1)-dimensional nonlinear wave excitations can be designed. As an illustration, periodic breathing lumps, multi-dromion-ring type instantons, and hybrid waves on a doubly periodic wave background are discovered to reveal abundant nonlinear structures and dynamics in higher dimensions.","PeriodicalId":508917,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141823738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Casimir Wormholes inspired by Electric Charge in Einstein Gauss-Bonnet gravity 受爱因斯坦高斯-波奈引力中电荷启发的卡西米尔虫洞

Communications in Theoretical Physics Pub Date : 2024-07-17 DOI: 10.1088/1572-9494/ad641d

M. Farooq, M. Zubair, Ali H. Alkhaldi, Akram Ali

{"title":"Casimir Wormholes inspired by Electric Charge in Einstein Gauss-Bonnet gravity","authors":"M. Farooq, M. Zubair, Ali H. Alkhaldi, Akram Ali","doi":"10.1088/1572-9494/ad641d","DOIUrl":"https://doi.org/10.1088/1572-9494/ad641d","url":null,"abstract":"\u0000 This investigation assesses the feasibility of a traversable wormhole (WH) by examining the energy densities associated with charged Casimir phenomena. We focus on the influence of the electromagnetic field created by an electric charge as well as the negative energy density arising from the Casimir source. We have developed different shape functions by defining energy densities from this combination. This paper explores various configurations of Casimir energy densities, specifically those occurring between parallel plates, cylinders, and spheres positioned at a specified distance from each other. Furthermore, the impact of the Generalised Uncertainty Principle (GUP) correction is also examined. The behavior of WH conditions is evaluated based on Gauss-Bonnet (GB) coupled parameter ($mu$) and electric charge ($Q$). Though the electromagnetic energy density constraint (NEC). This is attributed with the fact that the electromagnetic field satisfies the characteristic that is $rho=-p_{r}$. Subsequently, we examined the active gravitational mass (AGM) of the generated WH geometries and explored the behavior of $mu$ and $Q$ concerning active mass. The embedding representations for all formulated shape functions are examined. Investigations of the complexity factor (CF) of CCWH have demonstrated that the values of the CF consistently fall within a particular range in all scenarios. Finally, using the generalized Tolman Oppenheimer Volkoff (TOV) equation, we examine the stability of resulting charged Casimir wormhole (CCWH) solutions.","PeriodicalId":508917,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141830802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Davidson bases as an appropriate base for the Shell model large 1p- and 1h-nuclei 戴维森碱基作为壳牌模型（大 1p 核和 1h 核）的适当碱基

Communications in Theoretical Physics Pub Date : 2024-07-05 DOI: 10.1088/1572-9494/ad5f84

H. Sobhani, Yan-An Luo, Amir Jalili, H. Hassanabadi

引用次数: 0

Nonreciprocal single-photon scattering mediated by a driven Λ-type three-level giant atom 受驱动的Λ型三电平巨原子介导的非互易单光子散射

Communications in Theoretical Physics Pub Date : 2024-07-05 DOI: 10.1088/1572-9494/ad5f94

Xiaopei Zhang, Haozhen Li, Ran Zeng, Miao Hu, Mengmeng Xu, Xuefang Zhou, Yang Lan, Xiuwen Xia, Jingping Xu, Yaping Yang

{"title":"Nonreciprocal single-photon scattering mediated by a driven Λ-type three-level giant atom","authors":"Xiaopei Zhang, Haozhen Li, Ran Zeng, Miao Hu, Mengmeng Xu, Xuefang Zhou, Yang Lan, Xiuwen Xia, Jingping Xu, Yaping Yang","doi":"10.1088/1572-9494/ad5f94","DOIUrl":"https://doi.org/10.1088/1572-9494/ad5f94","url":null,"abstract":"\u0000 Waveguide-QED with giant atoms, which is capable of accessing various limits of a small one, provides a new paradigm to study photon scatterings. Thus, how to achieve nonreciprocal photon transmissions via such giant atom setup is highly desirable. In this work, the nonreciprocal single-photon scattering characteristics of a double driven Λ-type three-level giant atom, where one of the transition couples to a one-dimensional waveguide at two separate points, and the other one is driven by two coherent driving fields, are investigated. It is found that a frequency tunable single photon diode with ideal contrast ratio can be achieved by properly manipulating the local coupling phases between the giant atom and the waveguide, the accumulation phase between the two waveguide coupling points, the Rabi frequencies and phase difference of the two driven fields. Compared to the previous single driving schemes, on the one hand, the presence of the second driving field can provide more tunable parameters to manipulate the nonreciprocal single-photon scattering behaviors. On the other hand, here perfect nonreciprocal transmission for photons with arbitrary frequencies is achievable by tuning the driving phases while the two driving fields keep turning on, which provides an alternative way to control the nonreciprocal single photon scattering. Furthermore, the results reveal that both the locations and width of each optimal nonreciprocal transmission windows are also sensitive to the driving detuning, and single photon diode with wide or narrow bandwidth can be realized based on demand. These results may be beneficial for designing nonreciprocal single photon devices based on a double driven giant atom setup.","PeriodicalId":508917,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141676453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Verify quantum networks with GHZ paradox 用 GHZ 悖论验证量子网络

Communications in Theoretical Physics Pub Date : 2024-07-05 DOI: 10.1088/1572-9494/ad5f83

Huan Ye, Xue Yang, Ming‐Xing Luo

引用次数: 0

Thermal fluctuations, deflection angle and greybody factor of a high-dimensional Schwarzschild black hole in STVG STVG中高维施瓦兹柴尔德黑洞的热波动、偏转角和灰度因子

Communications in Theoretical Physics Pub Date : 2024-07-02 DOI: 10.1088/1572-9494/ad5d90

Qian Li, Yu Zhang, Qi-Quan Li, Qinshan Sun

{"title":"Thermal fluctuations, deflection angle and greybody factor of a high-dimensional Schwarzschild black hole in STVG","authors":"Qian Li, Yu Zhang, Qi-Quan Li, Qinshan Sun","doi":"10.1088/1572-9494/ad5d90","DOIUrl":"https://doi.org/10.1088/1572-9494/ad5d90","url":null,"abstract":"\u0000 In this work, we study the thermal fluctuations, deflection angle and greybody factor of the high-dimensional Schwarzschild black hole in scalar-tensor-vector gravity (STVG). We calculate some thermodynamic quantities related to the correction of black hole entropy caused by thermal fluctuations and discuss the effect of the correction parameters on these quantities. By analysing the changes in the corrected specific heat, we find that thermal fluctuations make the small-sized black hole more stable. It is worth noting that the STVG parameter does not affect the thermodynamic stability of this black hole. Additionally, by utilizing the Gauss-Bonnet theorem, the deflection angle is obtained in the weak field limit and the effect of two parameters on the results is visualized. Finally, we calculate the bounds on greybody factor of a massless scalar field. We observe that as the STVG parameter around black hole increases, the weak deflection angle becomes larger and the more scalar particles can reach infinity. However, the spacetime dimension has the opposite effect to the STVG parameter on the weak deflection angle and greybody factor.","PeriodicalId":508917,"journal":{"name":"Communications in Theoretical Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141687495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0