Dark energy fluid with time-dependent,inhomogeneous equation of state |
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| Authors: | I. Brevik O.G. Gorbunova A.V. Timoshkin |
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| Affiliation: | (1) Department of Energy and Process Engineering, Norwegian University of Science and Technology, Kolbj. Hejesv. 2, 7491 Trondheim, Norway;(2) Tomsk State Pedagogical University, Tomsk, Russia |
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| Abstract: | The four-dimensional flat Friedman universe filled with an ideal fluid with a linear (oscillating) inhomogeneous equation of state (EoS) depending on time is studied. The equations of motion are solved. It is shown that in some cases there appears a quasi-periodical universe that repeats the cycles of phantom-type space acceleration. The appearance of future singularities resulting from various choices for the input parameters is discussed. |
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