Solution to the Cosmological Constant Problem by Gauge Theory of Gravity |
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| Authors: | WU Ning Germano Resconi ZHENG Zhi-Peng Xu Zhan ZHANG Da-Hua RUAN Tu-Nan |
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| Affiliation: | Institute of High Energy Physics, P.O. Box 918-1, Beijing 100039, China Mathematical and Physical Department, Catholic University, Via Trieste 17, Brescia, Italy Institute of High Energy Physics, P.O. Box 918-1, Beijing 100039, China Institute for Advanced Study, Tsinghua University, Beijing 100084, China Institute of High Energy Physics, P.O. Box 918-1, Beijing 100039, China Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China |
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| Abstract: | Based on geometry picture of gravitational gauge theory, the cosmological constant is determined theoreti-cally. The cosmological constant is related to the average energy density of gravitational gauge field. Because the energydensity of gravitational gauge field is negative, the cosmological constant is positive, which generates repulsive force onstars to make the expansion rate of the Universe accelerated. A rough estimation of it gives out its magnitude of theorder of about 10-52m-2, which is well consistent with experimental results. |
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| Keywords: | cosmological constant cosmology quantum gravity general relativity |
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