Gravitational Field Excitation from the First Term of Quantum Wilson Loop  

作　　者：SHAO Liang SHAO Dan SHAO Chang-Gui H. Noda CHEN Yi-Han 

机构地区：[1]Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081, China [2]Department of Physics, Jianghan University, Wuhan 430056, China [3]Institute of Theoretical Physics, Hubei University, Wuhan 430062, China [4]Department of Mathematical Sciences, Ibaraki University, Mito 310-8512, Japan

出　　处：《Communications in Theoretical Physics》2006年第1X期77-86,共10页理论物理通讯（英文版）

基　　金：The project partially supported by Fund of the Education Department of Hubei Province of China under Grant No. D200534001

摘　　要：In 4-dimensional R-gravity, using the linear and square terms of the expanding expression of the space-time connection, we calculate the possible curvature excitation （order k^4） of gravitational field, which is given by the first term of quantum Wilson loop （w） through two-point Green＇s function of the connection. At the same time using the tree diagram propagators of gravitons, the lowest order （k^4） correction to （w） is also calculated through the graviton self-energy in the term. Under the accuracy condition up to order k^4, we have obtained a complete expression of the excitation contributed from the leading term （w^（2））of （w）.

关 键 词：excitation of gravitational field graviton self-energy correction complete expression of excitation of order k^4 in （w^（2）） 

分 类 号：O411[理学—理论物理]