Exact Inflationary Solutions Inspired by the Emergent Universe Scenario
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Abstract
We present new classes of exact inflationary solutions for a two-component chiral cosmological model with phantom and canonical scalar fields. These solutions are obtained by use of the scale factor in the form corresponding to that exploited in the emergent universe scenario. We outline in detail the method of deriving exact solutions and discuss the potential and kinetic interaction for the model.
Keywords
Cosmology Emergent universe Inflation Exact solutionsNotes
Acknowledgments
SVC is thankful to the University of KwaZulu-Natal, the University of Zululand and the NRF for financial support and warm hospitality during his visit in 2012 and 2013 to South Africa. SDM acknowledges that this work is based upon research supported by the South African Research Chair Initiative of the Department of Science and Technology and the National Research Foundation. The authors are grateful to Manos Saridakis for enlightening correspondence about this paper, and for drawing our attention to several interesting references [14, 15, 16]. SVC and KAS are thankful to Alexey Starobinsky for his comment on stability of the EmU and useful discussions. SVC and KAS note that part of this work was carried out within the framework of a State Order of the Ministry of Education and Science of the Russian Federation in accordance with Project No. 2014/391.
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