Probing holographic flat bands at finite density
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866916286330568704 |
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| author | Grandi, Nicolás Juričić, Vladimir Landea, Ignacio Salazar Soto-Garrido, Rodrigo |
| author_facet | Grandi, Nicolás Juričić, Vladimir Landea, Ignacio Salazar Soto-Garrido, Rodrigo |
| contents | Flat band electronic systems exhibit a rich landscape of correlation-driven phases. 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_08603 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Probing holographic flat bands at finite density Grandi, Nicolás Juričić, Vladimir Landea, Ignacio Salazar Soto-Garrido, Rodrigo High Energy Physics - Theory Strongly Correlated Electrons Flat band electronic systems exhibit a rich landscape of correlation-driven phases. 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. |
| title | Probing holographic flat bands at finite density |
| topic | High Energy Physics - Theory Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2304.08603 |