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Stability of holographic confinement with magnetic fluxes

ALI FATEMIABHARI, Carlos Nunez Orcid Logo, Maurizio Piai Orcid Logo, James Rucinski

Physical Review D, Volume: 111, Issue: 6

Swansea University Authors: ALI FATEMIABHARI, Carlos Nunez Orcid Logo, Maurizio Piai Orcid Logo, James Rucinski

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DOI (Published version): 10.1103/physrevd.111.066009

Abstract

We analyze the stability properties of a simple holographic model for a confining field theory. The gravity dual consists of an Abelian gauge field, with non-trivial magnetic flux, coupled to six- dimensional gravity with a negative cosmological constant. We construct a one-parameter family of regul...

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Published in: Physical Review D
ISSN: 2470-0010 2470-0029
Published: American Physical Society (APS) 2025
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URI: https://cronfa.swan.ac.uk/Record/cronfa68963
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spelling 2025-03-11T15:43:44.8381681 v2 68963 2025-02-26 Stability of holographic confinement with magnetic fluxes cf0474757b894f2c6714f77d336eb607 ALI FATEMIABHARI ALI FATEMIABHARI true false c0d6540c37ad4b0a5934d3978048fb2a 0000-0002-1958-9551 Carlos Nunez Carlos Nunez true false 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 84eb149471edda5c940459ea94e3d03e James Rucinski James Rucinski true false 2025-02-26 We analyze the stability properties of a simple holographic model for a confining field theory. The gravity dual consists of an Abelian gauge field, with non-trivial magnetic flux, coupled to six- dimensional gravity with a negative cosmological constant. We construct a one-parameter family of regular solitonic solutions, where the gauge field carries flux along a compact circle that smoothly shrinks. Thefreeenergyofthesesolitonicbackgroundsiscomparedtothatofdomain-wallsolutions. This reveals a zero-temperature first-order phase transition in the dual field theory, separating confining and conformal phases. We compute the spectrum of bound states by analysing field fluctuations in the gravity background, after dimensional reduction on the circle. A tachyonic instability emerges near a turning point in the free energy. The phase transition prevents the realisation of this instability. Near the phase transition and beyond, in metastable and unstable regions, we find evidence that the lightest scalar may be interpreted as an approximate dilaton. Journal Article Physical Review D 111 6 American Physical Society (APS) 2470-0010 2470-0029 10 3 2025 2025-03-10 10.1103/physrevd.111.066009 COLLEGE NANME COLLEGE CODE Swansea University SCOAP3. 2025-03-11T15:43:44.8381681 2025-02-26T07:56:46.8435995 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics ALI FATEMIABHARI 1 Carlos Nunez 0000-0002-1958-9551 2 Maurizio Piai 0000-0002-2251-0111 3 James Rucinski 4 68963__33786__2b64104793f34fe0ace14a9af456f4fc.pdf 68963.VoR.pdf 2025-03-11T15:40:32.3976552 Output 743318 application/pdf Version of Record true Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. true eng https://creativecommons.org/licenses/by/4.0/ 305 James Rucinski 0000-0003-4261-2358 2315621@swansea.ac.uk true https://zenodo.org/records/14203865 false
title Stability of holographic confinement with magnetic fluxes
spellingShingle Stability of holographic confinement with magnetic fluxes
ALI FATEMIABHARI
Carlos Nunez
Maurizio Piai
James Rucinski
title_short Stability of holographic confinement with magnetic fluxes
title_full Stability of holographic confinement with magnetic fluxes
title_fullStr Stability of holographic confinement with magnetic fluxes
title_full_unstemmed Stability of holographic confinement with magnetic fluxes
title_sort Stability of holographic confinement with magnetic fluxes
author_id_str_mv cf0474757b894f2c6714f77d336eb607
c0d6540c37ad4b0a5934d3978048fb2a
3ce295f2c7cc318bac7da18f9989d8c3
84eb149471edda5c940459ea94e3d03e
author_id_fullname_str_mv cf0474757b894f2c6714f77d336eb607_***_ALI FATEMIABHARI
c0d6540c37ad4b0a5934d3978048fb2a_***_Carlos Nunez
3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio Piai
84eb149471edda5c940459ea94e3d03e_***_James Rucinski
author ALI FATEMIABHARI
Carlos Nunez
Maurizio Piai
James Rucinski
author2 ALI FATEMIABHARI
Carlos Nunez
Maurizio Piai
James Rucinski
format Journal article
container_title Physical Review D
container_volume 111
container_issue 6
publishDate 2025
institution Swansea University
issn 2470-0010
2470-0029
doi_str_mv 10.1103/physrevd.111.066009
publisher American Physical Society (APS)
college_str Faculty of Science and Engineering
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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
document_store_str 1
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description We analyze the stability properties of a simple holographic model for a confining field theory. The gravity dual consists of an Abelian gauge field, with non-trivial magnetic flux, coupled to six- dimensional gravity with a negative cosmological constant. We construct a one-parameter family of regular solitonic solutions, where the gauge field carries flux along a compact circle that smoothly shrinks. Thefreeenergyofthesesolitonicbackgroundsiscomparedtothatofdomain-wallsolutions. This reveals a zero-temperature first-order phase transition in the dual field theory, separating confining and conformal phases. We compute the spectrum of bound states by analysing field fluctuations in the gravity background, after dimensional reduction on the circle. A tachyonic instability emerges near a turning point in the free energy. The phase transition prevents the realisation of this instability. Near the phase transition and beyond, in metastable and unstable regions, we find evidence that the lightest scalar may be interpreted as an approximate dilaton.
published_date 2025-03-10T08:23:59Z
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score 11.058331

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