Behavior of the Chiral Soliton Model at High Temperature and Chiral Phase Transition

The calculations of the soliton solutions in the chiral soliton model are fin-ished via a numerical method with the aim of analysing the influence of thermal effectson chiral solitons.An intuitive physical picture about chiral restoration phase transitionin a strong interacting system is also shown.

Mean-field approximation for the chiral soliton in a chiral phase transition

Using the mean-field approximation, we study the chiral soliton within the linear sigma model in a thermal vacuum. The chiral soliton equations with different boundary conditions are solved at finite temperatures and densities. The solitons are discussed before and after chiral restoration. We find that the system has soliton solutions even after chiral restoration, and that they are very different from those before chiral restoration, which indicates that the quarks are still bound after chiral restoration.

Radial Excitations in the Global Colour Soliton Model

With the Munczek-Nemirovsky model of the effective gluon propagator in the global colour model, we study the radially excited solitons in which one quark is excited and the other two are at the ground state. The obtained masses of the two radial excitations are comparable with the experimental data.

Method of Lines for the Chiral Nonlinear Schrödinger Equation

In this paper, we solve chiral nonlinear Schrodinger equation (CNSE) numerically. Two numerical methods are derived using the explicit Runge-Kutta method of order four and the linear multistep method (Predictor-Corrector method of fourth order). The resulting schemes of fourth order accuracy in spatial and temporal directions. The CNSE is non-integrable and has two kinds of soliton solutions: bright and dark soliton. The exact solutions and the conserved quantities of CNSE are used to display the efficiency and robustness of the numerical methods we derived. Interaction of two bright solitons for different parameters is also displayed.

Stability analysis and soliton solutions of the(1+1)-dimensional nonlinear chiral Schrodinger equation in nuclear physics

The nonlinear Schrodinger equation equation is one of the most important physical models used in optical fiber theory to explain the transmission of an optical soliton.The field of chiral soliton propagation in nuclear physics is very interesting because of its numerous applications in communications and ultra-fast signal routing systems.The(1+1)-dimensional chiral dynamical structure that describes the soliton behaviour in data transmission is dealt with in this work using a variety of in-depth analytical techniques.This work has applications in particle physics,ionised science,nuclear physics,optics,and other applied mathematical sciences.We are able to develop a variety of solutions to demonstrate the behaviour of solitary wave structures,periodic soliton solutions,chiral soliton solutions,and bell-shaped soliton solutions with the use of applied techniques.Moreover,in order to verify the scientific calculations,the stability analysis for the observed solutions of the governing model is taken into consideration.In addition,the3-dimensional,contour,and 2-dimensional visuals are supplied for a better understanding of the behaviour of the solutions.The employed strategies are dependable,uncomplicated,and effective;yet have not been utilised with the governing model in the literature that is now accessible.The resulting outcomes have impressive applications across a large number of study areas and computational physics phenomena representing real-world scenarios.The methods applied in this model are not utilized on the given models in previous literature so we can say that these describe the novelty of the work.

Skyrme模型的3个非球对称双重子手征孤子

简要介绍了Skyrme模型及其对重子的描述,给出了3个不同于Balachandran解的双重子手征孤子解,并用Witten的方法量子化这些孤子,得出双重子手征孤子质量谱,这些孤子的空间对称性质不同,有相同的质量谱。

奇异粒子Σ和Λ的σ模型

本文讨论了有奇异夸克参与的σ模型,在平均场近似下,用刺猬解计算了奇异粒子∑和∧的一些静态性质。

手征孤子模型的有限温度孤子解与相变

将建立在夸克层次上的零温手征孤子模型推广到有限温度情形，利用平均场近似导出了该模型在有限温度的场方程组，并用数值计算方法求出了场方程在不同温度下的孤子解，进而考察和分析了手征孤子模型的特征随温度的变化规律。结果表明，在温度足够高时，描述强相互作用束缚态的手征孤子消失，系统的手征对称性相应得到恢复。

层状手性拓扑磁材料Cr1/3NbS2的磁学特性

伴随着拓扑材料的出现,拓扑物理学成为了当代凝聚态物理的前沿与热点之一.拓扑特性是描述材料的物理量在连续变换下会保持不变的性质(如陈数Chern number),种类包括拓扑绝缘体、外尔和狄拉克等拓扑半金属、拓扑磁材料等.一维手性磁孤子(chiral magnetic solitons),类似于磁性斯格明子(skyrmions),是一类具有拓扑性和准粒子性的磁结构,具有丰富的物理特性和潜在应用价值.本文详细总结了一种具有一维手性磁孤子结构的晶体Cr1/3NbS2,包括其晶体构型、磁相互作用、磁结构、维度调控以及相变物理等物理特性.希望本综述能为研究拓扑磁材料的科研人员提供详实的参考,为将拓扑和手性磁性引入到二维层状材料家族提供研究思路,促进拓扑磁电子学的发展,为相关器件提供更多的材料选择和理论基础.

轴矢量介子f_1(1282)在手征孤立子模型中的效应———f_1运动方程的大N_C分析

从U (2 ) L ×U (2 ) R 手征孤立子模型出发 ,通过(πωf1 )模型考察了轴矢量介子 f1 (1 2 82 )的时间分量和空间分量的量级与其手征伙伴ω的关系。通过对 f1 运动方程的大NC 分析 ,发现 :f1 的时间分量 f0 具有O(1N3/2C)的量级 ,其空间分量 fi 具有和ω空间分量ωi 相同的O(1NC)量级。因此 ,在研究孤立子转动激发时 ,fi 和ωi 应该同时考察。这是首次对于 f1 在手征孤立子模型中的效应进行定量估算。

寻找多夸克新粒子态的实验进展

文章叙述了强子结构的夸克模型的成就和不足,详细介绍了寻找多夸克新粒子态的实验进展.寻找多夸克新粒子态对中国粒子物理实验学家可能作出世界创新成果是一个良好机遇.

轴矢量介子f_1(1282)在(πωf_1)手征孤立子模型中的效应

通过比较 (πω)和 (πωf1)手征孤立子模型中介子场量的静态解 ,考察了在两种参数确定方式下的轴矢量介子f1(12 82 )对于手征孤立子转动惯量和重子多重态质量劈裂的效应。结论是 :f1的效应很小 ,因此以往忽略

轴矢量介子f_1(1282)在手征孤立子模型中的效应——f_1对于静态质量和转动惯量的贡献

从U (2 ) L ×U (2 ) R 手征孤立子模型出发 ,通过(πωf1 )模型考察了轴矢量介子 f1 (1 2 82 )对于孤立子转动惯量和重子多重态质量劈裂的影响。通过 f1 对转动惯量贡献的计算发现 :1 .f1 对于转动惯量具有一定的减小作用 ,但是量级很小 ,这表明以往忽略 f1 的研究是近似合理 ,f1 介子的引入可以略微增大质量劈裂 ;2 .在合理选取ω与重子流耦合常数的情况下 ,得到的静态质量与实验比较符合。这是首次对 f1 介子在手征孤立子模型中的效应进行定量估算。

由3个不同的初始手征角给出的初次迭代后的自洽手征孤子解（英文）

利用3个不同的初始手征角,给出了重子数为1的体系的平均场方程的一次迭代后的解,以此研究哪一种手征角可以令平均场方程的解的自洽性更快地达到。对于不同的初始手征角,发现经过第一次迭代后,指数形式的手征角给出的结果比别的手征角更接近自洽解的形状。

Photoproduction of the Θ^+ and its vector andaxial-vector structure

We present recent investigations on the vector and axial-vector transitions of the baryon antidecuplet within the framework of the self-consistent SU（3） chiral quark-soliton model, taking into account the 1/No rotational and linear mscorrections. The main contribution to the electric-like transition form factor comes from the wave-function corrections. This is a consequence of the generalized Ademollo-Gatto theorem. It is also found that in general the leading-order contributions are almost canceled by the rotational 1/No corrections. The results are summarized as follows： the vector and tensor K＇NO coupling constants, gK＊N= 0.74--0.87 and fk＊N =0.53--1.16, respectively, and F→KN = 0.71 MeV, based on the result of the KN coupling constant gKne =0.83. We also show the differential cross sections and beam asymmetries, based on the present results. We also discuss the connection of present results with the original work by Diakonov, Petrov, and Polyakov.