arXiv 0907.25622009-07hep-thastro-ph.COastro-ph.HEgr-qc

修正的广义相对论

Chern-Simons Modified General Relativity

Stephon Alexander, Nicolas Yunes

备注：: 104 pages, 2 figures, 186 references, Invited Review accepted for publication in Phys. Repts. This version corrects a minor typo in Eq. (174) of the published version
DOI：: 10.1016/j.physrep.2009.07.002

摘要：

陈-西蒙斯修正引力理论是广义相对论的一个有效推广，它描述了首阶引力宇称破坏。这样一个有效的理论是由粒子物理学和弦论中的反常抵消所激发的。在这篇评论中，我们首先提供了一个教学推导的三个不同的方式，这种扩展出现：（1）在粒子物理学，（2）从弦论和（3）几何。然后，我们回顾了许多精确的和近似的，修改后的理论的真空解决方案，并讨论可能的物质耦合。在此之后，我们回顾了无数的天体物理，太阳系，引力波和宇宙学的探测绑定陈-西蒙斯修改的引力，包括讨论宇宙重子不对称性和通货膨胀。审查结束时，可能的未来方向，以测试和研究引力宇称违反的讨论。

英文摘要：

Chern-Simons modified gravity is an effective extension of general relativity that captures leading-order, gravitational parity violation. Such an effective theory is motivated by anomaly cancelation in particle physics and string theory. In this review, we begin by providing a pedagogical derivation of the three distinct ways such an extension arises: (1) in particle physics, (2) from string theory and (3) geometrically. We then review many exact and approximate, vacuum solutions of the modified theory, and discuss possible matter couplings. Following this, we review the myriad astrophysical, solar system, gravitational wave and cosmological probes that bound Chern-Simons modified gravity, including discussions of cosmic baryon asymmetry and inflation. The review closes with a discussion of possible future directions in which to test and study gravitational parity violation.

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英文摘要：

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