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arXiv 0812.4914math-phhep-thmath.MPmath.OC
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局域动力学的规范形和规范对称性

Normal forms and gauge symmetries of local dynamics

S. L. Lyakhovich, A. A. Sharapov

摘要:

提出了一个系统的程序推导所有的规范对称性的一般,不一定变分,运动方程。对于变分方程,这一过程减少到Dirac-Bergmann算法的约束Hamilton系统与一定的扩展:它仍然适用于狄拉克猜想的范围之外。即使在一般非变分动力学中约束和规范对称性生成元之间不存在配对,也可以在不诉诸任何泊松结构的情况下识别第一类和第二类约束的某些对应物。结果表明,一般的定域规范动力学可以等价地转化为对合规范形。最后一种形式的动力学总是允许BRST嵌入,它不需要经典方程遵循任何变分原理。

英文摘要:

A systematic procedure is proposed for deriving all the gauge symmetries of the general, not necessarily variational, equations of motion. For the variational equations, this procedure reduces to the Dirac-Bergmann algorithm for the constrained Hamiltonian systems with certain extension: it remains applicable beyond the scope of Dirac's conjecture. Even though no pairing exists between the constraints and the gauge symmetry generators in general non-variational dynamics, certain counterparts still can be identified of the first- and second-class constraints without appealing to any Poisson structure. It is shown that the general local gauge dynamics can be equivalently reformulated in the involutive normal form. The last form of dynamics always admits the BRST embedding, which does not require the classical equations to follow from any variational principle.

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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