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arXiv 1012.3681math-phhep-thmath.MP
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非线性系统的对称性:量子化的群方法

Symmetries of Non-Linear Systems: Group Approach to their Quantization

V. Aldaya, M. Calixto, J. Guerrero, F F López-Ruiz

摘要:

我们简要报告的方法量子理论完全基于对称性的理由,提高几何量子化在某些方面,并提供了一个替代的规范框架。本方案通常是非微扰的,主要用于非线性系统,尽管不用说,找到与给定(量子)物理问题相关联的基本对称性通常是一项困难的任务,其许多次几乎模拟了找到实际(经典)解的复杂性。除了与电磁和引力粒子相互作用有关的一些有趣的例子外,其中代数版本的等效原理自然产生,我们试图对非线性西格玛模型进行量子描述。特别地,我们提出了部分迹非线性SU(2)西格玛模型的实际量子化,作为非线性量子场论的一个代表性例子。

英文摘要:

We report briefly on an approach to quantum theory entirely based on symmetry grounds which improves Geometric Quantization in some respects and provides an alternative to the canonical framework. The present scheme, being typically non-perturbative, is primarily intended for non-linear systems, although needless to say that finding the basic symmetry associated with a given (quantum) physical problem is in general a difficult task, which many times nearly emulates the complexity of finding the actual (classical) solutions. Apart from some interesting examples related to the electromagnetic and gravitational particle interactions, where an algebraic version of the equivalence principle naturally arises, we attempt to the quantum description of non-linear sigma models. In particular, we present the actual quantization of the partial-trace non-linear SU(2) sigma model as a representative case of non-linear quantum field theory.

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