Inhomogeneous viscous fluid in anisotropic inflationary universe

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作者
M. Sharif
Sidra Mohsaneen
机构
[1] University of the Punjab,Department of Mathematics
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关键词
Anisotropic universe model; Inflation; Inhomogeneous viscous fluid;
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摘要
In this paper, we study inhomogeneous viscous fluid for inflation in the framework of locally rotationally symmetric Bianchi type I universe model. We consider an inhomogeneous equation of state with viscosity term to ensure a graceful exit from inflationary period. In order to study inflationary perturbations, we evaluate slow-roll parameters, scalar and tensor power spectra, scalar spectral index, tensor to scalar ratio for scalar field and inhomogeneous viscous fluid. It is concluded that our anisotropic inflationary universe model with inhomogeneous viscous fluid is consistent with recent data in a specific range of the model parameters.
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