Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma
Abstract We begin the exploration of holographic duals to theories with generalised global (higher-form) symmetries. In particular, we focus on the case of magnetohydrodynamics (MHD) in strongly coupled plasmas by constructing and analysing a holographic dual to...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/131675 |
| _version_ | 1826200584691122176 |
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| author | Grozdanov, Sašo Poovuttikul, Napat |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Grozdanov, Sašo Poovuttikul, Napat |
| author_sort | Grozdanov, Sašo |
| collection | MIT |
| description | Abstract
We begin the exploration of holographic duals to theories with generalised global (higher-form) symmetries. In particular, we focus on the case of magnetohydrodynamics (MHD) in strongly coupled plasmas by constructing and analysing a holographic dual to a recent, generalised global symmetry-based formulation of dissipative MHD. The simplest holographic dual to the effective theory of MHD that was proposed as a description of plasmas with any equation of state and transport coefficients contains dynamical graviton and two-form gauge field fluctuations in a magnetised black brane background. The dual field theory, which is closely related to the large-Nc,
N
$$ \mathcal{N} $$
= 4 supersymmetric Yang-Mills theory at (infinitely) strong coupling, is, as we argue, in our setup coupled to a dynamical U(1) gauge field with a renormalisation condition-dependent electromagnetic coupling. After constructing the holographic dictionary for gauge-gravity duals of field theories with higher-form symmetries, we compute the dual equation of state and transport coefficients, and for the first time analyse phenomenology of MHD waves in a strongly interacting, dense plasma with a (holographic) microscopic description. From weak to extremely strong magnetic fields, several predictions for the behaviour of Alfvén and magnetosonic waves are discussed. |
| first_indexed | 2024-09-23T11:38:39Z |
| format | Article |
| id | mit-1721.1/131675 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:38:39Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1316752024-01-02T15:16:34Z Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma Grozdanov, Sašo Poovuttikul, Napat Massachusetts Institute of Technology. Center for Theoretical Physics Abstract We begin the exploration of holographic duals to theories with generalised global (higher-form) symmetries. In particular, we focus on the case of magnetohydrodynamics (MHD) in strongly coupled plasmas by constructing and analysing a holographic dual to a recent, generalised global symmetry-based formulation of dissipative MHD. The simplest holographic dual to the effective theory of MHD that was proposed as a description of plasmas with any equation of state and transport coefficients contains dynamical graviton and two-form gauge field fluctuations in a magnetised black brane background. The dual field theory, which is closely related to the large-Nc, N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory at (infinitely) strong coupling, is, as we argue, in our setup coupled to a dynamical U(1) gauge field with a renormalisation condition-dependent electromagnetic coupling. After constructing the holographic dictionary for gauge-gravity duals of field theories with higher-form symmetries, we compute the dual equation of state and transport coefficients, and for the first time analyse phenomenology of MHD waves in a strongly interacting, dense plasma with a (holographic) microscopic description. From weak to extremely strong magnetic fields, several predictions for the behaviour of Alfvén and magnetosonic waves are discussed. 2021-09-20T17:29:34Z 2021-09-20T17:29:34Z 2019-04-23 2020-06-26T12:59:52Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/131675 Journal of High Energy Physics. 2019 Apr 23;2019(4):141 PUBLISHER_CC en https://doi.org/10.1007/JHEP04(2019)141 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Grozdanov, Sašo Poovuttikul, Napat Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma |
| title | Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma |
| title_full | Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma |
| title_fullStr | Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma |
| title_full_unstemmed | Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma |
| title_short | Generalised global symmetries in holography: magnetohydrodynamic waves in a strongly interacting plasma |
| title_sort | generalised global symmetries in holography magnetohydrodynamic waves in a strongly interacting plasma |
| url | https://hdl.handle.net/1721.1/131675 |
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