This is a tutorial for the many-worlds theory by Everett, which includes some of my personal views. It has two main parts. The first main part shows the emergence of many worlds in a universe consisting of only a Mach–Zehnder interferometer. The second main part is an abridgment of Everett’s long thesis, where his theory was originally elaborated in detail with clarity and rigor. Some minor comments are added in the abridgment in light of recent developments. Even if you do not agree to Everett’s view, you will still learn a great deal from his generalization of the uncertainty relation, his unique way of defining entanglement (or canonical correlation), his formulation of quantum measurement using Hamiltonian, and his relative state.

这是Everett的多世界理论教程，其中包括我的一些个人观点。它有两个主要部分。第一个主要部分显示了仅由Mach-Zehnder干涉仪组成的宇宙中许多世界的出现。第二个主要部分是埃弗里特（Everett）的长篇论文的缩写，他的理论最初是清晰而严格地详细阐述的。鉴于最近的发展，在摘要中添加了一些小意见。即使您不同意埃弗里特的观点，您仍将从他对不确定性关系的概括，他定义纠缠（或典范相关性）的独特方法，他使用哈密顿量的量子测量公式以及他的相对状态中学到很多东西。