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arxiv: 1509.07358 · v1 · pith:MGTQFIAQnew · submitted 2015-09-15 · 🌀 gr-qc

Inflationary Weak Anisotropic Model with General Dissipation Coefficient

classification 🌀 gr-qc
keywords coefficientscalardissipativeinflationarymodelanisotropicdatadissipation
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This paper explores the dynamics of warm intermediate and logamediate inflationary models during weak dissipative regime with a general form of dissipative coefficient. We analyze these models within the framework of locally rotationally symmetric Bianchi type I universe. In both cases, we evaluate solution of inflaton, effective scalar potential, dissipative coefficient, slow-roll parameters, scalar and tensor power spectra, scalar spectral index and tensor to scalar ratio under slow-roll approximation. We constrain the model parameters using recent data and conclude that anisotropic inflationary universe model with generalized dissipation coefficient remains compatible with WMAP9, Planck and BICEP2 data.

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