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Density-metric unimodular gravity: Vacuum maximal symmetry |
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| Authors: | A.H. Abbassi A.M. Abbassi |
| Affiliation: | aDepartment of Physics, School of Sciences, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Iran;bDepartment of Physics, University of Tehran, P.O. Box 14155-6455, Tehran, Iran |
| Abstract: | We have investigated the vacuum maximally symmetric solutions of recently proposed density-metric unimodular gravity theory. The results are widely different from inflationary scenario. The exponential dependence on time in deSitter space is substituted by a power law. Open space–times with non-zero cosmological constant are excluded. |
| Keywords: | Unimodular gravity Modified gravity Empty cosmological models |
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