Modular properties of massive scalar partition functions

Abstract We compute the exact thermal partition functions of a massive scalar field on flat spacetime backgrounds of the form ℝ d−q × 𝕋 q+1 and show that they possess an SL(q + 1, ℤ) symmetry. Non-trivial relations between equivalent expressions for the result are obtained by doing the computation u...

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Main Authors: Ankit Aggarwal, Glenn Barnich
Format: Article
Language:English
Published: SpringerOpen 2024-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2024)127
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author Ankit Aggarwal
Glenn Barnich
author_facet Ankit Aggarwal
Glenn Barnich
author_sort Ankit Aggarwal
collection DOAJ
description Abstract We compute the exact thermal partition functions of a massive scalar field on flat spacetime backgrounds of the form ℝ d−q × 𝕋 q+1 and show that they possess an SL(q + 1, ℤ) symmetry. Non-trivial relations between equivalent expressions for the result are obtained by doing the computation using functional, canonical and worldline methods. For q = 1, the results exhibit modular symmetry and may be expressed in terms of massive Maass-Jacobi forms. In the complex case with chemical potential for U(1) charge turned on, the usual discussion of relativistic Bose-Einstein condensation is modified by the presence of the small dimensions.
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institution Kabale University
issn 1029-8479
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publishDate 2024-09-01
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series Journal of High Energy Physics
spelling doaj-art-8e5b1d7fc6774b66a6e6b123c00a34522024-12-08T12:16:13ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024913210.1007/JHEP09(2024)127Modular properties of massive scalar partition functionsAnkit Aggarwal0Glenn Barnich1Institute for Theoretical Physics, TU WienPhysique Théorique et Mathématique, Université libre de Bruxelles and International Solvay InstitutesAbstract We compute the exact thermal partition functions of a massive scalar field on flat spacetime backgrounds of the form ℝ d−q × 𝕋 q+1 and show that they possess an SL(q + 1, ℤ) symmetry. Non-trivial relations between equivalent expressions for the result are obtained by doing the computation using functional, canonical and worldline methods. For q = 1, the results exhibit modular symmetry and may be expressed in terms of massive Maass-Jacobi forms. In the complex case with chemical potential for U(1) charge turned on, the usual discussion of relativistic Bose-Einstein condensation is modified by the presence of the small dimensions.https://doi.org/10.1007/JHEP09(2024)127Global SymmetriesThermal Field TheoryField Theories in Higher DimensionsScale and Conformal Symmetries
spellingShingle Ankit Aggarwal
Glenn Barnich
Modular properties of massive scalar partition functions
Journal of High Energy Physics
Global Symmetries
Thermal Field Theory
Field Theories in Higher Dimensions
Scale and Conformal Symmetries
title Modular properties of massive scalar partition functions
title_full Modular properties of massive scalar partition functions
title_fullStr Modular properties of massive scalar partition functions
title_full_unstemmed Modular properties of massive scalar partition functions
title_short Modular properties of massive scalar partition functions
title_sort modular properties of massive scalar partition functions
topic Global Symmetries
Thermal Field Theory
Field Theories in Higher Dimensions
Scale and Conformal Symmetries
url https://doi.org/10.1007/JHEP09(2024)127
work_keys_str_mv AT ankitaggarwal modularpropertiesofmassivescalarpartitionfunctions
AT glennbarnich modularpropertiesofmassivescalarpartitionfunctions