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arXiv 2301.03533hep-th
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Minkowski空间中作为场的非折叠点粒子

Unfolded Point Particle as a Field in Minkowski Space

A. A. Tarusov, M. A. Vasiliev

摘要:

点粒子动力学被重新表述为场论。这是通过使用展开动力学的方法,使得它有可能给动力学解释的物理尺寸的概念,这是1的点粒子在$d$维时空。在$d$维空间中描述$k$维壳上系统的主要思想是保持沿$d-k$维离壳的演化,或者,可替代地,以特定的方式限制它,尊重所得到的展开系统的相容性条件。所开发的方法给出了一些提示如何非线性实现的对称性$G$的一个较大的维空间中的低维系统可以出现从一个几何实现的领域在一个适当的$G$不变的空间。对于本文所考虑的相对论性点粒子的例子,$ G$是庞加莱群。所提出的一般计划是由简单的例子,重现传统的结果。

英文摘要:

Point-particle dynamics is reformulated as a field theory. This is achieved by using the unfolded dynamics approach that makes it possible to give dynamical interpretation to the concept of physical dimension which is 1 for a point particle in the $d$-dimensional space-time. The main idea for the description of a $k$-dimensional on-shell system in the $d$-dimensional space is to keep the evolution along $d-k$ dimensions off-shell or, alternatively, restrict it in a specific way respecting the compatibility conditions of the resulting unfolded system. The developed approach gives some hints how a non-linear realization of the symmetry $G$ of a larger-dimensional space in a lower-dimensional system can emerge from a geometrical realization on the fields in an appropriate $G$-invariant space. For the example of a relativistic point particle considered in this paper, $ G$ is the Poincare group. The proposed general scheme is illustrated by simple examples that reproduce conventional results.

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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