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arXiv 1901.08673hep-th
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相对论性世界线哈密顿公式的一个隐藏约束

A hidden constraint on the Hamiltonian formulation of relativistic worldlines

Benjamin Koch, Enrique Muñoz

摘要:

具有一般协变性的规范理论特别不愿意量子化。我们讨论的例子的相对论性点粒子的哈密顿公式,尽管其表面上的简单,是至关重要的,因为一些点粒子系统可以铸造成这种形式的一个更高的维林德勒的背景下,最近指出的Hojman。它表明,该系统可以配备一个隐藏的本地,对称生成,约束,这一方面不打扰经典的发展,另一方面简化了实现的路径积分量子化。尽管隐藏对称性的积极影响在拉格朗日版本的理论中更为明显,但它仍然存在于建议的哈密顿约束中。

英文摘要:

Gauge theories with general covariance are particularly reluctant to quantization. We discuss the example of the Hamiltonian formulation of the relativistic point particle that, despite its apparent simplicity, is of crucial importance since a number of point particle systems can be cast into this form on a higher dimensional Rindler background, as recently pointed out by Hojman. It is shown that this system can be equipped with a hidden local, symmetry generating, constraint which on the one hand does not bother the classical evolution and on the other hand simplifies the realization of the path integral quantization. Even though the positive impact of the hidden symmetry is more evident in the Lagrangian version of the theory, it is still present through the suggested Hamiltonian constraint.

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