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arXiv 0911.0334gr-qchep-thmath-phmath.MP
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经典物理:时空与场

Classical Physics: Spacetime and Fields

Nikodem Popławski

AI总结:

本文基于广义协变性和最小作用量原理,系统阐述经典时空与场理论,并说明粒子是场的特例、经典力学可由场论导出。

摘要:

我们给出一个关于经典时空与场理论的自足式导论。本阐述基于最一般的原理:广义协变性(相对性)原理和最小作用量原理。阐述顺序为:1. 时空(广义协变性原理与张量、仿射联络、曲率、度规、空间与时间、标架与自旋联络、洛伦兹群、旋量);2. 场(最小作用量原理、引力场、物质、对称性与守恒律、场的粒子极限、引力场方程、旋量场、电磁场)。按照这一顺序,粒子是存在于时空中的场的一种特殊情况,经典力学可以从场论推导出来。

英文摘要:

We present a self-contained introduction to the classical theory of spacetime and fields. This exposition is based on the most general principles: the principle of general covariance (relativity) and the principle of least action. The order of the exposition is: 1. Spacetime (principle of general covariance and tensors, affine connection, curvature, metric, space and time, tetrad and spin connection, Lorentz group, spinors); 2. Fields (principle of least action, gravitational field, matter, symmetries and conservation laws, particle limit of field, gravitational field equations, spinor fields, electromagnetic field). In this order, a particle is a special case of a field existing in spacetime, and classical mechanics can be derived from field theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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