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Two-field Cosmological alpha-attractors with Noether Symmetry
<!--HTML-->We study Noether symmetries in two-field cosmological alpha-attractors, investigating the case when the scalar manifold is an elementary hyperbolic surface. This encompasses and generalizes the case of the Poincare disk. We solve the conditions for the existence of a `separated'...
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Lenguaje: | eng |
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2019
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Acceso en línea: | http://cds.cern.ch/record/2681344 |
_version_ | 1780963026211438592 |
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author | Anguelova, Lilia |
author_facet | Anguelova, Lilia |
author_sort | Anguelova, Lilia |
collection | CERN |
description | <!--HTML-->We study Noether symmetries in two-field cosmological alpha-attractors, investigating the case when the scalar manifold is an elementary hyperbolic surface. This encompasses and generalizes the case of the Poincare disk. We solve the conditions for the existence of a `separated' Noether symmetry and find the form of the scalar potential compatible with such, for any elementary hyperbolic surface. For this class of symmetries, we find that the alpha-parameter must have a fixed value. Using those Noether symmetries, we also obtain many exact solutions of the equations of motion of these models, which were studied previously with numerical methods. |
id | cern-2681344 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2019 |
record_format | invenio |
spelling | cern-26813442022-11-02T22:21:40Zhttp://cds.cern.ch/record/2681344engAnguelova, LiliaTwo-field Cosmological alpha-attractors with Noether SymmetryString Phenomenology 2019Conferences & Workshops<!--HTML-->We study Noether symmetries in two-field cosmological alpha-attractors, investigating the case when the scalar manifold is an elementary hyperbolic surface. This encompasses and generalizes the case of the Poincare disk. We solve the conditions for the existence of a `separated' Noether symmetry and find the form of the scalar potential compatible with such, for any elementary hyperbolic surface. For this class of symmetries, we find that the alpha-parameter must have a fixed value. Using those Noether symmetries, we also obtain many exact solutions of the equations of motion of these models, which were studied previously with numerical methods.oai:cds.cern.ch:26813442019 |
spellingShingle | Conferences & Workshops Anguelova, Lilia Two-field Cosmological alpha-attractors with Noether Symmetry |
title | Two-field Cosmological alpha-attractors with Noether Symmetry |
title_full | Two-field Cosmological alpha-attractors with Noether Symmetry |
title_fullStr | Two-field Cosmological alpha-attractors with Noether Symmetry |
title_full_unstemmed | Two-field Cosmological alpha-attractors with Noether Symmetry |
title_short | Two-field Cosmological alpha-attractors with Noether Symmetry |
title_sort | two-field cosmological alpha-attractors with noether symmetry |
topic | Conferences & Workshops |
url | http://cds.cern.ch/record/2681344 |
work_keys_str_mv | AT anguelovalilia twofieldcosmologicalalphaattractorswithnoethersymmetry AT anguelovalilia stringphenomenology2019 |