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General properties of the self-tuning domain wall approach to the cosmological constant problem

Joshua Erlich, Csaba Csaki, Christophe Grojean, Timothy Hollowood Orcid Logo

Nuclear Physics B, Volume: "B584", Issue: 1-2, Pages: 359 - 386

Swansea University Author: Timothy Hollowood Orcid Logo

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DOI (Published version): 10.1016/S0550-3213(00)00390-4

Abstract

We study the dynamics of brane worlds coupled to a scalar field and gravity, and find that self-tuning of the cosmological constant is generic in theories with at most two branes or a single brane with orbifold boundary conditions. We demonstrate that singularities are generic in the self-tuned solu...

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Published in: Nuclear Physics B
ISSN: 05503213
Published: 2000
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URI: https://cronfa.swan.ac.uk/Record/cronfa28552
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first_indexed 2016-06-03T19:16:21Z
last_indexed 2018-02-09T05:12:48Z
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spelling 2016-06-03T14:36:33.6673758 v2 28552 2016-06-03 General properties of the self-tuning domain wall approach to the cosmological constant problem ea9ca59fc948276ff2ab547e91bdf0c2 0000-0002-3258-320X Timothy Hollowood Timothy Hollowood true false 2016-06-03 SPH We study the dynamics of brane worlds coupled to a scalar field and gravity, and find that self-tuning of the cosmological constant is generic in theories with at most two branes or a single brane with orbifold boundary conditions. We demonstrate that singularities are generic in the self-tuned solutions compatible with localized gravity on the brane: we show that localized gravity with an infinitely large extra dimension is only consistent with particular fine-tuned values of the brane tension. The number of allowed brane tension values is related to the number of negative stationary points of the scalar bulk potential and, in the case of an oscillatory potential, the brane tension for which gravity is localized without singularities is quantized. We also examine a resolution of the singularities, and find that fine-tuning is generically re-introduced at the singularities in order to retain a static solution. However, we speculate that the presence of additional fields may restore Journal Article Nuclear Physics B "B584" 1-2 359 386 05503213 30 4 2000 2000-04-30 10.1016/S0550-3213(00)00390-4 http://inspirehep.net/record/526330 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2016-06-03T14:36:33.6673758 2016-06-03T14:36:33.1681726 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Joshua Erlich 1 Csaba Csaki 2 Christophe Grojean 3 Timothy Hollowood 0000-0002-3258-320X 4
title General properties of the self-tuning domain wall approach to the cosmological constant problem
spellingShingle General properties of the self-tuning domain wall approach to the cosmological constant problem
Timothy Hollowood
title_short General properties of the self-tuning domain wall approach to the cosmological constant problem
title_full General properties of the self-tuning domain wall approach to the cosmological constant problem
title_fullStr General properties of the self-tuning domain wall approach to the cosmological constant problem
title_full_unstemmed General properties of the self-tuning domain wall approach to the cosmological constant problem
title_sort General properties of the self-tuning domain wall approach to the cosmological constant problem
author_id_str_mv ea9ca59fc948276ff2ab547e91bdf0c2
author_id_fullname_str_mv ea9ca59fc948276ff2ab547e91bdf0c2_***_Timothy Hollowood
author Timothy Hollowood
author2 Joshua Erlich
Csaba Csaki
Christophe Grojean
Timothy Hollowood
format Journal article
container_title Nuclear Physics B
container_volume "B584"
container_issue 1-2
container_start_page 359
publishDate 2000
institution Swansea University
issn 05503213
doi_str_mv 10.1016/S0550-3213(00)00390-4
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
url http://inspirehep.net/record/526330
document_store_str 0
active_str 0
description We study the dynamics of brane worlds coupled to a scalar field and gravity, and find that self-tuning of the cosmological constant is generic in theories with at most two branes or a single brane with orbifold boundary conditions. We demonstrate that singularities are generic in the self-tuned solutions compatible with localized gravity on the brane: we show that localized gravity with an infinitely large extra dimension is only consistent with particular fine-tuned values of the brane tension. The number of allowed brane tension values is related to the number of negative stationary points of the scalar bulk potential and, in the case of an oscillatory potential, the brane tension for which gravity is localized without singularities is quantized. We also examine a resolution of the singularities, and find that fine-tuning is generically re-introduced at the singularities in order to retain a static solution. However, we speculate that the presence of additional fields may restore
published_date 2000-04-30T03:34:46Z
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score 11.013731

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