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Title: On classical and quantum dynamics of tachyon-like fields and their cosmological implications

We consider a class of tachyon-like potentials, motivated by string theory, D-brane dynamics and inflation theory in the context of classical and quantum mechanics. A formalism for describing dynamics of tachyon fields in spatially homogenous and one-dimensional - classical and quantum mechanical limit is proposed. A few models with concrete potentials are considered. Additionally, possibilities for p-adic and adelic generalization of these models are discussed. Classical actions and corresponding quantum propagators, in the Feynman path integral approach, are calculated in a form invariant on a change of the background number fields, i.e. on both archimedean and nonarchimedean spaces. Looking for a quantum origin of inflation, relevance of p-adic and adelic generalizations are briefly discussed.
Authors:
; ;  [1] ;  [2]
  1. Department of Physics, Faculty of Science and Mathematics, University of Niš (Serbia)
  2. Faculty of Physics, West University of Timisoara (Romania)
Publication Date:
OSTI Identifier:
22390745
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1634; Journal Issue: 1; Conference: TIM-13 Physics Conference, Timisoara (Romania), 21-24 Nov 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ACTION INTEGRAL; D-BRANES; FEYNMAN PATH INTEGRAL; INFLATIONARY UNIVERSE; M-THEORY; ONE-DIMENSIONAL CALCULATIONS; POTENTIALS; PROPAGATOR; QUANTUM MECHANICS; STRING MODELS; STRING THEORY; TACHYONS