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Calin Iuliu Lazaroiu
기하학 수리물리 연구단
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Hidden symmetries of two-field cosmological models

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Title
Hidden symmetries of two-field cosmological models
Author(s)
Lilia Anguelova; Elena Mirela Babalic; Calin Iuliu Lazaroiu
Publication Date
2019-09
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v., no.9, pp.007 -
Publisher
SPRINGER
Abstract
c The Authors. We determine the most general time-independent Noether symmetries of two-field cosmological models with rotationally-invariant scalar manifold metrics. In particular, we show that such models can have hidden symmetries, which arise if and only if the scalar manifold metric has Gaussian curvature -3/8, i.e. when the model is of elementary alpha-attractor type with a fixed value of the parameter alpha. In this case, we find explicitly all scalar potentials compatible with hidden Noether symmetries, thus classifying all models of this type. We also discuss some implications of the corresponding conserved quantity
URI
https://pr.ibs.re.kr/handle/8788114/6422
ISSN
1029-8479
Appears in Collections:
Center for Geometry and Physics(기하학 수리물리 연구단) > Journal Papers (저널논문)
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