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arXiv 1201.6504gr-qchep-th
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大质量高阶导数引力理论

Massive Higher Derivative Gravity Theories

Ibrahim Gullu

摘要:

本文对质量高阶导数引力理论进行了较为详细的分析。在$D$维(Anti)-de Sitter和平坦时空中,对于最一般的二次曲率理论,在树水平上发现了引力子交换介导的两个协变守恒源之间的单粒子散射振幅.从振幅表达式,牛顿势能计算各种情况下。此外,从这个振幅和传播子结构,一个三维酉理论被确定。在论文的第二部分中,我们从规范的角度对三维幺正理论进行了更详细的研究。一般的高阶作用量是写在规范不变的功能,无论是在平坦和德西特背景。在平坦时空的情况下,通过将静态源、自旋质量和引力Chern-Simons项分别添加到理论中来扩展分析。在弯曲时空的讨论中,发现了相对论和非相对论极限下的质量。在附录中,给出了一些在论文中经常用到的计算方法。

英文摘要:

In this thesis massive higher derivative gravity theories are analyzed in some detail. One-particle scattering amplitude between two covariantly conserved sources mediated by a graviton exchange is found at tree-level in $D$ dimensional (Anti)-de Sitter and flat spacetimes for the most general quadratic curvature theory augmented with the Pauli-Fierz mass term. From the amplitude expression, the Newtonian potential energies are calculated for various cases. Also, from this amplitude and the propagator structure, a three dimensional unitary theory is identified. In the second part of the thesis, the found three dimensional unitary theory is studied in more detail from a canonical point of view. The general higher order action is written in terms of gauge-invariant functions both in flat and de Sitter backgrounds. The analysis is extended by adding static sources, spinning masses and the gravitational Chern-Simons term separately to the theory in the case of flat spacetime. For all cases the microscopic spectrum and the masses are found. In the discussion of curved spacetime, the masses are found in the relativistic and non-relativistic limits. In the Appendix, some useful calculations that are frequently used in the bulk of the thesis are given.

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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