Conductivities and excitations of a holographic flavour brane Weyl semimetal
Abstract We compute the electrical conductivities at non-zero frequency in a top-down holographic model of a Weyl semimetal, consisting of N $$ \mathcal{N} $$ = 4 supersymmetric SU(N c ) Yang-Mills theory coupled to N $$ \mathcal{N} $$ = 2 hypermultiplets with mass m, subject to an applied axial vec...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)115 |
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| author | Haruki Furukawa Sacha Ployet Ronnie Rodgers |
| author_facet | Haruki Furukawa Sacha Ployet Ronnie Rodgers |
| author_sort | Haruki Furukawa |
| collection | DOAJ |
| description | Abstract We compute the electrical conductivities at non-zero frequency in a top-down holographic model of a Weyl semimetal, consisting of N $$ \mathcal{N} $$ = 4 supersymmetric SU(N c ) Yang-Mills theory coupled to N $$ \mathcal{N} $$ = 2 hypermultiplets with mass m, subject to an applied axial vector field b. The model exhibits a first-order phase transition between a Weyl semimetal phase at small m/b and an insulating phase at large m/b. The conductivities develop peaks and troughs as functions of real frequency at low temperatures and for m/b close to the phase transition. We compute the poles of the conductivities as functions of complex frequency, finding poles with small imaginary part at low temperatures and close to the phase transition. |
| format | Article |
| id | doaj-art-15bac90b93b94153a1f14c74b1ef3d6f |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-15bac90b93b94153a1f14c74b1ef3d6f2025-08-20T04:01:42ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025713910.1007/JHEP07(2025)115Conductivities and excitations of a holographic flavour brane Weyl semimetalHaruki Furukawa0Sacha Ployet1Ronnie Rodgers2Department of Physics, University of IllinoisDepartment of Physics, Université Paris-SaclayNordita, Stockholm University and KTH Royal Institute of TechnologyAbstract We compute the electrical conductivities at non-zero frequency in a top-down holographic model of a Weyl semimetal, consisting of N $$ \mathcal{N} $$ = 4 supersymmetric SU(N c ) Yang-Mills theory coupled to N $$ \mathcal{N} $$ = 2 hypermultiplets with mass m, subject to an applied axial vector field b. The model exhibits a first-order phase transition between a Weyl semimetal phase at small m/b and an insulating phase at large m/b. The conductivities develop peaks and troughs as functions of real frequency at low temperatures and for m/b close to the phase transition. We compute the poles of the conductivities as functions of complex frequency, finding poles with small imaginary part at low temperatures and close to the phase transition.https://doi.org/10.1007/JHEP07(2025)115AdS-CFT CorrespondenceHolography and Condensed Matter Physics (AdS/CMT)Holography and Hydrodynamics |
| spellingShingle | Haruki Furukawa Sacha Ployet Ronnie Rodgers Conductivities and excitations of a holographic flavour brane Weyl semimetal Journal of High Energy Physics AdS-CFT Correspondence Holography and Condensed Matter Physics (AdS/CMT) Holography and Hydrodynamics |
| title | Conductivities and excitations of a holographic flavour brane Weyl semimetal |
| title_full | Conductivities and excitations of a holographic flavour brane Weyl semimetal |
| title_fullStr | Conductivities and excitations of a holographic flavour brane Weyl semimetal |
| title_full_unstemmed | Conductivities and excitations of a holographic flavour brane Weyl semimetal |
| title_short | Conductivities and excitations of a holographic flavour brane Weyl semimetal |
| title_sort | conductivities and excitations of a holographic flavour brane weyl semimetal |
| topic | AdS-CFT Correspondence Holography and Condensed Matter Physics (AdS/CMT) Holography and Hydrodynamics |
| url | https://doi.org/10.1007/JHEP07(2025)115 |
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