Causal viscous universe coupled with zero-mass scalar field in higher derivative theory |
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| Authors: | N Ibotombi Singh S Surendra Singh and S Romaleima?Devi |
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| Institution: | (1) Department of Applied Mathematics, Delhi College of Engineering, Bawana Road, Delhi, 110 042, India |
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| Abstract: | Cosmological solutions in the presence of an imperfect fluid and zero-mass scalar field are obtained in higher derivative
theory. We investigate both power law and exponential expansion of the universe described by full causal theories proposed
by Israel and Stewart. It is observed that energy density, co-efficient of bulk viscosity decrease with time in the presence
of massless scalar field and temperature increase with expansion of universe. |
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