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Noncommutative gauge theories and the cosmological constant

Rodolfo Russo, Adi Armoni Orcid Logo

Physical Review D, Volume: "D64", Issue: 8, Start page: 085016

Swansea University Author: Adi Armoni Orcid Logo

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DOI (Published version): 10.1103/PhysRevD.64.085016

Abstract

We discuss the issue of the cosmological constant in non-commutative non-supersymmetric gauge theories. In particular, in orbifold field theories non-commutativity acts as a UV cut-off. We suggest that in these theories quantum corrections give rise to a vacuum energy \rho, that is controlled by the...

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Published in: Physical Review D
ISSN: 0556-2821 1089-4918
Published: 2001
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URI: https://cronfa.swan.ac.uk/Record/cronfa28678
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first_indexed 2016-06-04T12:47:08Z
last_indexed 2018-02-09T05:13:02Z
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spelling 2016-06-04T06:08:34.9197350 v2 28678 2016-06-04 Noncommutative gauge theories and the cosmological constant 3f75faad0563a2d3b191191a2efee956 0000-0002-8105-0645 Adi Armoni Adi Armoni true false 2016-06-04 SPH We discuss the issue of the cosmological constant in non-commutative non-supersymmetric gauge theories. In particular, in orbifold field theories non-commutativity acts as a UV cut-off. We suggest that in these theories quantum corrections give rise to a vacuum energy \rho, that is controlled by the non-commutativity parameter \theta, \rho ~ 1/theta^2 (only a soft logarithmic dependence on the Planck scale survives). We demonstrate our claim in a two-loop computation in field theory and by certain higher loop examples. Based on general expressions from string theory, we suggest that the vacuum energy is controlled by non-commutativity to all orders in perturbation Journal Article Physical Review D "D64" 8 085016 0556-2821 1089-4918 30 6 2001 2001-06-30 10.1103/PhysRevD.64.085016 http://inspirehep.net/record/558720 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2016-06-04T06:08:34.9197350 2016-06-04T06:08:34.6857335 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Rodolfo Russo 1 Adi Armoni 0000-0002-8105-0645 2
title Noncommutative gauge theories and the cosmological constant
spellingShingle Noncommutative gauge theories and the cosmological constant
Adi Armoni
title_short Noncommutative gauge theories and the cosmological constant
title_full Noncommutative gauge theories and the cosmological constant
title_fullStr Noncommutative gauge theories and the cosmological constant
title_full_unstemmed Noncommutative gauge theories and the cosmological constant
title_sort Noncommutative gauge theories and the cosmological constant
author_id_str_mv 3f75faad0563a2d3b191191a2efee956
author_id_fullname_str_mv 3f75faad0563a2d3b191191a2efee956_***_Adi Armoni
author Adi Armoni
author2 Rodolfo Russo
Adi Armoni
format Journal article
container_title Physical Review D
container_volume "D64"
container_issue 8
container_start_page 085016
publishDate 2001
institution Swansea University
issn 0556-2821
1089-4918
doi_str_mv 10.1103/PhysRevD.64.085016
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/558720
document_store_str 0
active_str 0
description We discuss the issue of the cosmological constant in non-commutative non-supersymmetric gauge theories. In particular, in orbifold field theories non-commutativity acts as a UV cut-off. We suggest that in these theories quantum corrections give rise to a vacuum energy \rho, that is controlled by the non-commutativity parameter \theta, \rho ~ 1/theta^2 (only a soft logarithmic dependence on the Planck scale survives). We demonstrate our claim in a two-loop computation in field theory and by certain higher loop examples. Based on general expressions from string theory, we suggest that the vacuum energy is controlled by non-commutativity to all orders in perturbation
published_date 2001-06-30T03:34:56Z
_version_ 1763751490344714240
score 11.016235

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