Tīmeklis研究了时空分数阶复Ginzburg⁃Landau方程.首先通过分数阶复变换将时空分数阶复Ginzburg⁃Landau方程转化为一个常微分方程.然后将常微分方程化为初等积分形式.最后用多项式完全判别系统法求得一系列精确解,其中包含有孤立波解、有理函数解、三角函数周期解、Jacobi椭圆函数双周期解. Tīmeklis2024. gada 17. marts · 报告题目： 关于Landau-Ginzburg模型的几何 报告人： 范辉军教授 （北京大学） 报告时间：3月21日（周二） 16:30-17:30 报告地点：五教5107. 摘要： 一个 LG 模型 (M, f) 由一个非紧复流形 M 以及定义在其上的全纯函数 f 给出，是弦理论研究的一个重要模型。 又由于镜像对称猜想，对 LG 模型的几何结构和量子 ...

Michael Tinkham《Introduction to Superconductivity (2nd)》（迈 …

In physics, Ginzburg–Landau theory, often called Landau–Ginzburg theory, named after Vitaly Ginzburg and Lev Landau, is a mathematical physical theory used to describe superconductivity. In its initial form, it was postulated as a phenomenological model which could describe type-I … Skatīt vairāk Based on Landau's previously established theory of second-order phase transitions, Ginzburg and Landau argued that the free energy, F, of a superconductor near the superconducting transition can be expressed in … Skatīt vairāk The phase transition from the normal state is of second order for Type II superconductors, taking into account fluctuations, as demonstrated by Dasgupta and Halperin, … Skatīt vairāk The Ginzburg–Landau functional can be formulated in the general setting of a complex vector bundle over a compact Riemannian manifold Skatīt vairāk When the manifold $${\displaystyle M}$$ is a Riemann surface $${\displaystyle M=\Sigma }$$, the functional can be re-written so as to … Skatīt vairāk Consider a homogeneous superconductor where there is no superconducting current and the equation for ψ simplifies to: This equation has a trivial solution: ψ = 0. This … Skatīt vairāk The Ginzburg–Landau equations predicted two new characteristic lengths in a superconductor. The first characteristic length was termed coherence length, ξ. For T > Tc (normal … Skatīt vairāk In the original paper Ginzburg and Landau observed the existence of two types of superconductors depending on the energy of the interface between the normal and superconducting states. The Meissner state breaks down when the applied magnetic field is … Skatīt vairāk Tīmeklis在凝聚态物理学发展历程中，朗道—金兹堡相变理论奠定了人们对物质形态和有序相及其相变的认识基础，在结合了威尔逊重正化群理论后，形成了朗道—金兹堡—威尔逊范式，并成为整个现代物理学宏伟大厦的重要基石。 然而，在复杂电子多体系统的实验研究中，以量子霍尔效应、分数量子霍尔效应和铜氧化物高温超导体的实验发现为代表，涌 … t shirt designs cutting

Statistical Physics (PHY831): Part 4: Ginzburg-Landau …

TīmeklisLandau-de Gennes理论 Abstract: This is a survey on the mathematical studies of liquid crystals since the middle of 1980's. First of all, the development of the mathematical researches on the... Tīmeklis前言 这本书的使用建议 第一版序言 第一章 绪论 1.1 基本现象1.2 London(伦敦) 方程1.3 Pippard(皮帕尔德) 的非局域电动力学1.4 能隙与 BCS 理论1.5 Ginzburg(金兹堡)-Landau(朗道) 理论1.6 第 II 类超导体1.7 相位、Josephson(约瑟夫森) 隧道效应、全磁通量子化1.8 涨落… TīmeklisB. Ginzburg-Landau theory: Zero eld, the healing length ˘ Landau theory is a phenomenological mean eld theory to describe behavior near a phase transition. In … philosophie bachelor freiburg