Inhomogeneous imperfect fluid inflation

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• 作者：E. Elizalde ; Luis G. T. Silva
• 关键词：Inflation ; Dark energy ; Fluid models
• 刊名：Astrophysics and Space Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：362
• 期：1
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Astrophysics and Astroparticles; Astronomy, Observations and Techniques; Cosmology; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics); Astrobiology;
• 出版者：Springer Netherlands
• ISSN：1572-946X
• 卷排序：362

文摘

A generalized equation of state corresponding to a model that includes a Chaplygin gas and a viscous term is investigated, in the context of the reconstruction program in scalar field cosmology. The corresponding inflationary model parameters can be conveniently adjusted in order to reproduce the most recent PLANCK data. The influence of the Chaplygin gas term contribution, in relation with previous models, is discussed. Exit from inflation is shown to occur quite naturally in the new model.