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Quantum inflaton dynamics

Title
Quantum inflaton dynamics
Authors
Bak D.Kim S.P.Kim S.K.Soh K.-S.Yee J.H.
Ewha Authors
김성구
SCOPUS Author ID
김성구scopusscopus
Issue Date
1999
Journal Title
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN
0556-2821JCR Link
Citation
Physical Review D - Particles, Fields, Gravitation and Cosmology vol. 59, no. 2, pp. 1 - 4
Indexed
SCOPUS scopus
Document Type
Article
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 [U(1) charge of a complex theory]. 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. ©1998 The American Physical Society.
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자연과학대학 > 물리학전공 > Journal papers
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