Tahionska inflacija u holografskoj kosmologiji

Abstract

Theory of inflation is widely accepted as the best approach to the problems of the Early universe in the standard cosmology. The origin and nature of the physical field that determines the inflationary process are not well known. A popular class of inflatory models is based on the effective tachyon field theory determined by the Lagrangian of the DBI type. The potential role of tachyon fields in explaining the mechanism of inflation is based on the highly well developed string theory, M theory and brane theory, and its close relation to the current development of quantum gravity. The focus in this PhD thesis is on holographic cosmology, Einstein's effective equations in the 4-dimensional holographic boundary, and AdS/CFT correspondence. Analytical and numerical calculation of the observable parameters and their comparison with observational data indicate the validity of the model.