Probing holographic flat bands at finite density
Abstract Flat band electronic systems exhibit a rich landscape of correlation-driven phases, both at the charge neutrality and finite electronic density, featuring exotic electromagnetic and thermodynamic responses. Motivated by these developments, in this paper, we explicitly include the effects of...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2024)030 |
| _version_ | 1797355975401799680 |
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| author | Nicolás Grandi Vladimir Juričić Ignacio Salazar Landea Rodrigo Soto-Garrido |
| author_facet | Nicolás Grandi Vladimir Juričić Ignacio Salazar Landea Rodrigo Soto-Garrido |
| author_sort | Nicolás Grandi |
| collection | DOAJ |
| description | Abstract Flat band electronic systems exhibit a rich landscape of correlation-driven phases, both at the charge neutrality and finite electronic density, featuring exotic electromagnetic and thermodynamic responses. Motivated by these developments, in this paper, we explicitly include the effects of the chemical potential in a holographic model featuring approximately flat bands. In particular, we explore the phase diagram of this holographic flat band system as a function of the chemical potential. We find that at low temperatures and densities, the system features a nematic phase, transitioning into the Lifshitz phase as the chemical potential or temperature increases. To further characterize the ensuing phases, we investigate the optical conductivity and find that this observable shows strong anisotropies in the nematic phase. |
| first_indexed | 2024-03-08T14:19:58Z |
| format | Article |
| id | doaj.art-3ad7e23fce524080aabb617237a5a306 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-08T14:19:58Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-3ad7e23fce524080aabb617237a5a3062024-01-14T12:06:58ZengSpringerOpenJournal of High Energy Physics1029-84792024-01-012024111210.1007/JHEP01(2024)030Probing holographic flat bands at finite densityNicolás Grandi0Vladimir Juričić1Ignacio Salazar Landea2Rodrigo Soto-Garrido3Instituto de Física de La Plata - CONICETDepartamento de Física, Universidad Técnica Federico Santa MaríaInstituto de Física de La Plata - CONICETFacultad de Física, Pontificia Universidad Católica de ChileAbstract Flat band electronic systems exhibit a rich landscape of correlation-driven phases, both at the charge neutrality and finite electronic density, featuring exotic electromagnetic and thermodynamic responses. Motivated by these developments, in this paper, we explicitly include the effects of the chemical potential in a holographic model featuring approximately flat bands. In particular, we explore the phase diagram of this holographic flat band system as a function of the chemical potential. We find that at low temperatures and densities, the system features a nematic phase, transitioning into the Lifshitz phase as the chemical potential or temperature increases. To further characterize the ensuing phases, we investigate the optical conductivity and find that this observable shows strong anisotropies in the nematic phase.https://doi.org/10.1007/JHEP01(2024)030Holography and Condensed Matter Physics (AdS/CMT)AdS-CFT Correspondence |
| spellingShingle | Nicolás Grandi Vladimir Juričić Ignacio Salazar Landea Rodrigo Soto-Garrido Probing holographic flat bands at finite density Journal of High Energy Physics Holography and Condensed Matter Physics (AdS/CMT) AdS-CFT Correspondence |
| title | Probing holographic flat bands at finite density |
| title_full | Probing holographic flat bands at finite density |
| title_fullStr | Probing holographic flat bands at finite density |
| title_full_unstemmed | Probing holographic flat bands at finite density |
| title_short | Probing holographic flat bands at finite density |
| title_sort | probing holographic flat bands at finite density |
| topic | Holography and Condensed Matter Physics (AdS/CMT) AdS-CFT Correspondence |
| url | https://doi.org/10.1007/JHEP01(2024)030 |
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