https://doi.org/10.1140/epjc/s10052-019-7244-z
Regular Article - Theoretical Physics
Viscous fluid holographic inflation
1
Institute of Space Sciences, National Higher Research Council of Spain (ICE/CSIC and IEEC), Campus UAB, C/ Can Magrans, s/n, 08193, Bellaterra, Barcelona, Spain
2
Tomsk State Pedagogical University, Kievskaja Street, 60, 634061, Tomsk, Russia
3
Tomsk State University of Control Systems and Radio electronics, Lenin Avenue, 36, 634050, Tomsk, Russia
4
National Research Tomsk State University, Lenin Avenue, 36, 634050, Tomsk, Russia
* e-mail: elizalde@ieec.uab.es
Received:
18
July
2019
Accepted:
22
August
2019
Published online:
31
August
2019
A model of inflation produced by a viscous fluid is investigated and its compatibility with the holographic principle at the very early universe (as recently formulated for the holographic universe with a holographic cut-off radius) is demonstrated. Specifically, ensuing from the model, the corresponding scale factor and infrared cut-off are analytically calculated, which are taken to be the particle and future event horizon for inflation, respectively. Using them, the energy conservation law, in the holographic point of view, is obtained. In this way, total equivalence of viscous fluid inflation, with the specific cut-off of Nojiri and Odintsov, and holographic inflation is proven.
© The Author(s), 2019
