Cosmological Daemon

Details Cosmological Daemon Cosmological Daemon

2011-03-01

arxiv.org/abs/1103.0273v2

JHEP 1108:102,2011

Physics

High Energy Physics

High Energy Physics - Theory

LATEX, 31 pages, Sect. "Inflation and External Sources" and refs. are added

Scientific paper

10.1007/JHEP08(2011)102

Classical versions of the Big Bang cosmological models of the universe contain a singularity at the start of time, hence the time variable in the field equations should run over a half-line. Nonlocal string field theory equations with infinite number of derivatives are considered and an important difference between nonlocal operators on the whole real line and on a half-line is pointed out. We use the heat equation method and show that on the half-line in addition to the usual initial data a new arbitrary function (external source) occurs that we call the daemon function. The daemon function governs the evolution of the universe similar to Maxwell`s demon in thermodynamics. The universe and multiverse are open systems interacting with the daemon environment. In the simplest case the nonlocal scalar field reduces to the usual local scalar field coupled with an external source which is discussed in the stochastic approach to inflation. The daemon source can help to get the chaotic inflation scenario with a small scalar field.

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