Famous the world over for the creative brilliance of his insights into the physical world, Nobel Prize-winning physicist Richard Feynman also possessed an extraordinary talent for explaining difficult concepts to the nonscientist. QED--the edited version of four lectures on quantum electrodynamics that Feynman gave to the general public at UCLA as part of the Alix G. Mautner Memorial Lecture series--is perhaps the best example of his ability to communicate both the substance and the spirit of science to the layperson.</p>
The focus, as the title suggests, is quantum electrodynamics (QED), the part of the quantum theory of fields that describes the interactions of the quanta of the electromagnetic field-light, X rays, gamma rays--with matter and those of charged particles with one another. By extending the formalism developed by Dirac in 1933, which related quantum and classical descriptions of the motion of particles, Feynman revolutionized the quantum mechanical understanding of the nature of particles and waves. And, by incorporating his own readily visualizable formulation of quantum mechanics, Feynman created a diagrammatic version of QED that made calculations much simpler and also provided visual insights into the mechanisms of quantum electrodynamic processes.</p>
In this book, using everyday language, spatial concepts, visualizations, and his renowned "Feynman diagrams" instead of advanced mathematics, Feynman successfully provides a definitive introduction to QED for a lay readership without any distortion of the basic science. Characterized by Feynman's famously original clarity and humor, this popular book on QED has not been equaled since its publication.</p>
具體描述
讀後感
我一直对相对论里，光速作为一种绝对的存在这个观念很着迷，我认为它指向了宇宙的终极秘密：为何所有的space-time都是相对的，而c却是超越时空的存在？ 于是《QED—光和物质的奇妙理论》这书的标题一下子就把我抓住了。 基础的量子力学框架描述的是单个粒子如何运动。但要描述...
評分想要了解什么是路径积分？害怕数学？那么这本书就绝对 是你的唯一选择了。 这是大师的一个科普讲座的演讲稿。由于其对象是对物理了解不多的人，所以没有使用数学，但是物理概念及其清晰。强力推荐！
評分光不仅有粒子性，还有波动性，因此我们将之称为光子，光代表着她的波动性，子代表着她的粒子性。因此我们可以称之为奇异物质，奇异物质没有质量，没有体积只有动量及相关量。
評分QED，量子电动力学，听这名字就装逼到了极致，并且对于大多数人来说，光看这个装逼的名字，肯定就望而却步了！ 只要是接触量子力学有关的书，那肯定免不了接触到QED这个名词，我也是出于好奇，就想买本书看看QED到底是个什么玩意。说到这东西，入门的话，肯定选择...
評分开篇的某些内容会让人觉得：本来挺简单的，干嘛用这么复杂的方法阐述。但看到后来就会发现这种方法是贯穿始终的，越往后，问题越复杂，你会发现，用这种方法反而有助于理解，这就是“费曼式”的！
用戶評價
第一次給費曼的書很好の評價
评分根據費曼自己的說法，想搞明白QED，要麼去讀7年的物理學課程，要麼看完這本書
评分聽名字就會嚇一跳，有勇氣翻開的人就會覺得，哎吆，不錯喔！費曼花瞭四節課的時間介紹瞭量子電動力學中的一個計算模型，因為忽略掉具體計算技巧，可讀性較強。正因為如此，有好多精妙的地方就不是能夠很透徹的理解。
评分一本很薄的書，慕名費曼買瞭電子版，真的是…一頁一塊錢…也很值…
评分神作。大師小書。給純外行的量子電動力學科普。精彩萬分地描述瞭一個拋開數學之後的量子電動力學究竟在乾什麼的故事。精妙絕倫，受益匪淺。
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