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More on the bending of light in quantum gravity
Bai, D; Huang, Y; Huang, Y (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Huang, Y (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
2017
发表期刊PHYSICAL REVIEW D
卷号95期号:6页码:64045
文章类型Article
摘要We reconsider the long-range effects of the scattering of massless scalars and photons from a massive scalar object in quantum gravity. At the one-loop level, the relevant quantum mechanical corrections could be sorted into the graviton double-cut contributions, massless-scalar double-cut contributions and photon double-cut contributions. In Reference [N. E. J. Bjerrum-Bohr, J. F. Donoghue, B. R. Holstein, L. Plante, and P. Vanhove, Phys. Rev. Lett. 114, 061301 (2015), J. High Energy Phys. 11 (2016) 117] N. E. J. Bjerrum-Bohr et al. have considered explicitly the implications of the graviton double-cut contributions on the gravitational bending of light and some classical formulations of the equivalence principle, using the modern double-copy constructions and on-shell unitarity techniques. In this article, instead we consider all three contributions and redo the analysis using the traditional Feynman diagrammatic approach. Our results on the graviton double-cut contributions agree with the aforementioned references, acting as a nontrivial check of previous computations. Furthermore, it turns out that the massless-scalar double-cut contributions and the photon double-cut contributions do leave nonvanishing quantum effects on the scattering amplitudes and the gravitational bending of light. Yet, we find that the general structure of the gravitational amplitudes and the quantum discrepancy of the equivalence principle suggested in the aforementioned references remain intact.
学科领域Astronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.95.064045
关键词[WOS]ONE-LOOP DIVERGENCES ; GENERAL-RELATIVITY
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22099
专题理论物理所2017年知识产出
通讯作者Bai, D; Huang, Y (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Huang, Y (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
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Bai, D,Huang, Y,Huang, Y ,et al. More on the bending of light in quantum gravity[J]. PHYSICAL REVIEW D,2017,95(6):64045.
APA Bai, D,Huang, Y,Huang, Y ,&Huang, Y .(2017).More on the bending of light in quantum gravity.PHYSICAL REVIEW D,95(6),64045.
MLA Bai, D,et al."More on the bending of light in quantum gravity".PHYSICAL REVIEW D 95.6(2017):64045.
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