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Tachyon-inspired viscous inflation using Hamilton–Jacobi’s formalism during high dissipative regime

    https://doi.org/10.1142/S0218271819501360Cited by:1 (Source: Crossref)

    This paper deals with warm viscous inflation inspired by tachyon field using an important inflationary method known as Hamilton–Jacobi’s Formalism. This method provides a way to solve the equations of inflationary model without using extra approximations other than slow-roll. In this scenario, a general inflationary formalism is developed for tachyon field and the work is restricted to high dissipative regime. A detailed analysis of the model is presented for three different cases of constant as well as variable bulk and dissipative coefficients. In each case, the model parameters are constrained to plot the physically acceptable range of the perturbed parameters. The parametric trajectories proved that the acquired results for all cases are compatible with Planck astrophysical data.

    PACS: 98.80.Cq, 05.40.+j
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