Stability of viscous fluid in Bianchi type-VI model with cosmological constant |
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| Authors: | J Sadeghi Ali R Amani N Tahmasbi |
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| Institution: | 1. Faculty of Basic Sciences, Departments of Physics, Mazandaran University, P.O. Box 47415-416, Babolsar, Iran
2. Faculty of Basic Sciences, Department of Physics, Ayatollah Amoli Branch, Islamic Azad University, P.O. Box 678, Amol, Iran
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| Abstract: | In this paper, we investigate Bianchi type-VI cosmological model for the universe filled with dark energy and viscous fluid in the presence of cosmological constant. Also, we show accelerating expansion of the universe by drawing volume scale, pressure and energy density versus cosmic time. In order to solve the Einstein’s field equations, we assume the expansion scalar is proportional to a component of the shear tensor. Therefore, we obtain the directional scale factors and show the EOS parameter crosses over phantom divided-line. |
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