Quantum inflaton dynamics

Abstract

We show that the quantum dynamics of a real scalar field for a large class of potentials in the symmetric Gaussian state, where nonperturbative quantum contributions are taken into account, can be described equivalently by a two-dimensional nonlinear dynamical system with a definite angular momentum ͓U͑1͒ charge of a complex theory͔. A proposal is put forward that the symmetric Gaussian state with a nearly minimal uncertainty and a large quantum fluctuation, as an initial condition, naturally explains most of the essential features of the early stage of the inflationary universe. ͓S0556-2821͑98͒02024-4͔PACS number͑s͒: 98.80.Cq, 04.62.ϩv

Dichromated Gelatine as a Material of Optical Element

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Quantum Remnant as Dark Energy and Dark Matter

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Nonequilibrium quantum dynamics of second order phase transitions

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