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 abo...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.展开更多
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 ...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.展开更多
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-Correc...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.展开更多
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(...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.展开更多
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 rotat...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.展开更多
基金The project supported in part by National Natural Science Foundation of China
文摘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.
基金Supported by National Natural Science Foundation of China(10905018,11275082)
文摘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.
文摘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.
基金Supported by the National Natural Science Foundation of China under contract Nos 10425521, 10575004 and 106750077 the Key Project of the Ministry of Education of China under Grant No 305001, the Research Fund for the Doctoral Programme of Higher Education of China under Grant No 20040001010, and the Foundation for University Key Teachers by the Ministry of Education of China.
文摘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.
基金Supported by Inha University Research Grant (INHA-37453)The work of S.i.N. is supported by NSC96-2112-M033-003-MY3 from the National Science Council (NSC) of Taiwan
文摘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.
