Gravity and Spin Forces in Gravitational Quantum Field Theory
文献类型：期刊论文
| 作者 | Wu, YL ; Zhang, R2,2
|
| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2018 |
| 卷号 | 70期号:2页码:161-174 |
| 关键词 | GENERAL-RELATIVITY TORSION LAGRANGIANS |
| ISSN号 | 0253-6102 |
| DOI | 10.1088/0253-6102/70/2/161 |
| 英文摘要 | In the new framework of gravitational quantum field theory (GQFT) with spin and scaling gauge invariance developed in Phys. Rev. D 93 (2016) 024012-1, we make a perturbative expansion for the full action in a background field which accounts for the early inflationary universe. We decompose the bicovariant vector fields of gravifield and spin gauge field with Lorentz and spin symmetries SO(1,3) and SP(1,3) in biframe spacetime into SO(3) representations for deriving the propagators of the basic quantum fields and extract their interaction terms. The leading order Feynman rules are presented. A tree-level 2 to 2 scattering amplitude of the Dirac fermions, through a gravifield and a spin gauge field, is calculated and compared to the Born approximation of the potential. It is shown that the Newton's gravitational law in the early universe is modified due to the background field. The spin dependence of the gravitational potential is demonstrated. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22845]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.[Wu, Yue-Liang 3.Univ Chinese Acad Sci, ICTP AP, Beijing 100049, Peoples R China 4.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, YL,Zhang, R. Gravity and Spin Forces in Gravitational Quantum Field Theory[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2018,70(2):161-174. |
| APA | Wu, YL,&Zhang, R.(2018).Gravity and Spin Forces in Gravitational Quantum Field Theory.COMMUNICATIONS IN THEORETICAL PHYSICS,70(2),161-174. |
| MLA | Wu, YL,et al."Gravity and Spin Forces in Gravitational Quantum Field Theory".COMMUNICATIONS IN THEORETICAL PHYSICS 70.2(2018):161-174. |
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来源：理论物理研究所
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