GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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Energy Conditions and Constraints on the Generalized Non-Local Gravity Model |
Ya-Bo Wu**, Xue Zhang, Bo-Hai Chen, Nan Zhang, Meng-Meng Wu |
Department of Physics, Liaoning Normal University, Dalian 116029
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Cite this article: |
Ya-Bo Wu, Xue Zhang, Bo-Hai Chen et al 2017 Chin. Phys. Lett. 34 079801 |
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Abstract We study and derive the energy conditions in generalized non-local gravity, which is the modified theory of general relativity obtained by adding a term $m^{2n-2}R\Box^{-n}R$ to the Einstein–Hilbert action. Moreover, to obtain some insight on the meaning of the energy conditions, we illustrate the evolutions of four energy conditions with the model parameter $\varepsilon$ for different $n$. By analysis we give the constraints on the model parameters $\varepsilon$.
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Received: 10 March 2017
Published: 23 June 2017
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PACS: |
98.80.-k
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(Cosmology)
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98.80.Jk
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(Mathematical and relativistic aspects of cosmology)
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04.20.-q
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(Classical general relativity)
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Fund: Supported by the National Natural Science Foundation of China under Grant Nos 11175077 and 11575075, and the Natural Science Foundation of Liaoning Province under Grant No L201683666. |
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