Supersymmetry, Supergravity, and Strings

在理论粒子物理领域的这项研究的目的是研究超对称性和超重力，这是描述和分析超弦理论的主要成分。超弦理论是研究物质的基本成分以及它们之间的所有力(包括引力)统一的主要候选理论。超严格理论的可行性在很大程度上取决于超对称性的存在，超对称性的概念告诉我们，在一些基本水平上，尽管基本粒子的性质表面上是不同的，但它们共享一个潜在的身份，这使得它们可以被视为一个单一实体的不同方面。通过研究超对称理论，其中超引力是与弦理论相关的理论，我们学习如何分析它，如何进行计算和获得信息，这些信息最终将使我们能够证实，有了这个美丽的理论，我们确实达到了理解自然如何在最基本的水平上工作的目标。

The purpose of this research in the area of theoretical particle physicsis to study aspects of supersymmetry and supergravity, which are mainingredients in the description and analysis of superstring theory.Superstring theory is the major candidate theory for the study of thefundamental constituents of matter as well as the unification of all the forces between them, including gravity. The viability of superstringtheory depends crucially on the existence of supersymmetry, a conceptthat tells us that at some fundamental level elementary particles, thoughsuperficially distinct in their properties, share an underlying identitywhich allows them to be considered as different facets of a singleentity. By studying supersymmetric theories, of which supergravityis the one relevant for string theory, we learn how to analyze it and howto perform calculations and gain information which ultimatelywill allow us to confirm that with this beautiful theory we haveindeed reached the goal of understanding how Nature works at the mostbasic level.