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Canonical and symplectic analysis of actions describing linearized gravity

机译:描述线性化重力的行为的规范和辛分析

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摘要

By using the canonical and symplectic approaches an (nonstandard) alternative action describing linearized gravity is studied. We identify the complete set of Dirac's constraints, the counting of physical degrees of freedom is performed and the Dirac brackets are constructed. Furthermore, the symplectic analysis is developed which includes the complete set of Faddeev-Jackiw constraints and a symplectic tensor; from that symplectic matrix we show that the generalized Faddeev-Jackiw brackets and the Dirac ones coincide to each other. With all these results at hand, we prove that the number of physical degrees of freedom are eight, thus, we conclude that the theory does not describe the dynamics of linearized gravity. In addition, we also develop the symplectic analysis of standard linearized gravity and we compare the results for both standard and nonstandard theories. Finally we present some remarks and conclusions.
机译:通过使用规范和辛方法,研究了描述线性化重力的(非标准)替代动作。 我们识别完整的DIRAC的约束,执行物理自由度的计数,并且构造狄拉克括号。 此外,开发了辛分析,包括完整的Faddeev-Jackiw约束和辛张力; 从那个辛矩阵中,我们表明广义的Faddeev-jackiw括号和狄拉科彼此一致。 随着所有这些结果,我们证明了自由度的数量是八个,因此我们得出结论,该理论没有描述线性化重力的动态。 此外,我们还开发了标准线性化重力的辛分析,并比较标准和非标准理论的结果。 最后,我们提出了一些备注和结论。

著录项

  • 来源
    《European Physical Journal Plus》 |2019年第4期|共12页
  • 作者单位

    Benemerita Univ Autonoma Puebla Inst Fis Luis Rivera Terrazas Apartado Postal J-48 Puebla 72570 Pue Mexico;

    Benemerita Univ Autonoma Puebla Fac Ciencias Fis Matemat Apartado Postal 1152 Puebla 72001 Pue Mexico;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
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