<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>拓扑 on Haifei's Home</title><link>https://haifei-home.pages.dev/tags/%E6%8B%93%E6%89%91/</link><description>Recent content in 拓扑 on Haifei's Home</description><generator>Hugo</generator><language>zh-CN</language><managingEditor>hfwang132@gmail.com (hfwang132)</managingEditor><webMaster>hfwang132@gmail.com (hfwang132)</webMaster><copyright>This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</copyright><lastBuildDate>Sun, 30 Mar 2025 01:13:18 +0800</lastBuildDate><atom:link href="https://haifei-home.pages.dev/tags/%E6%8B%93%E6%89%91/index.xml" rel="self" type="application/rss+xml"/><item><title>狄拉克磁单极子——陈类与陈数【更高更妙的电动力学·4】</title><link>https://haifei-home.pages.dev/post_20250330_%E7%8B%84%E6%8B%89%E5%85%8B%E7%A3%81%E5%8D%95%E6%9E%81%E5%AD%90-%E9%99%88%E7%B1%BB%E4%B8%8E%E9%99%88%E6%95%B0-%E6%9B%B4%E9%AB%98%E6%9B%B4%E5%A6%99%E7%9A%84%E7%94%B5%E5%8A%A8%E5%8A%9B%E5%AD%A6-4/</link><pubDate>Sun, 30 Mar 2025 01:13:18 +0800</pubDate><author>hfwang132@gmail.com (hfwang132)</author><guid>https://haifei-home.pages.dev/post_20250330_%E7%8B%84%E6%8B%89%E5%85%8B%E7%A3%81%E5%8D%95%E6%9E%81%E5%AD%90-%E9%99%88%E7%B1%BB%E4%B8%8E%E9%99%88%E6%95%B0-%E6%9B%B4%E9%AB%98%E6%9B%B4%E5%A6%99%E7%9A%84%E7%94%B5%E5%8A%A8%E5%8A%9B%E5%AD%A6-4/</guid><description>&lt;p&gt;本系列上一篇文章：&lt;/p&gt;
&lt;p&gt;&lt;a href="https://zhuanlan.zhihu.com/p/32173040413" target="_blank" rel="noopener noreffer "&gt;Godfly：电磁场不只是电场和磁场——AB效应与Berry联络【更高更妙的电动力学·3】&lt;/a&gt;&lt;/p&gt;
&lt;hr&gt;
&lt;p&gt;在&lt;a href="https://zhuanlan.zhihu.com/p/32173040413" target="_blank" rel="noopener noreffer "&gt;上篇文章&lt;/a&gt;中，我们说到，如果流形是拓扑平凡的，那么对 Berry 曲率在闭合曲面 \(\Sigma\) 上积分应该得到零。这是因为根据 Stokes 定理，有：&lt;/p&gt;</description></item></channel></rss>