Symmetric Tensor Coupling in Holographic Mean-Field Theory: Deformed Dirac Cones
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915334656622592 |
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| author | Byun, Moongul Yuk, Taewon Sin, Sang-Jin |
| author_facet | Byun, Moongul Yuk, Taewon Sin, Sang-Jin |
| contents | We extend the holographic mean-field theory to rank-two symmetric tensor order parameter field coupled with fermion. We classify the roles of symmetric tensor order according to the effect on the spectral density: cone-angle change, squashing, and tilting of the spectral light cones. The over-tilted light cone is also achieved in a generalized prescription, which consistently preserves the causality condition. Our results provide agreements between the holographic spectra with those observed in real materials, such as type-II Dirac cones and strained graphene. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_05871 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Symmetric Tensor Coupling in Holographic Mean-Field Theory: Deformed Dirac Cones Byun, Moongul Yuk, Taewon Sin, Sang-Jin High Energy Physics - Theory Strongly Correlated Electrons We extend the holographic mean-field theory to rank-two symmetric tensor order parameter field coupled with fermion. We classify the roles of symmetric tensor order according to the effect on the spectral density: cone-angle change, squashing, and tilting of the spectral light cones. The over-tilted light cone is also achieved in a generalized prescription, which consistently preserves the causality condition. Our results provide agreements between the holographic spectra with those observed in real materials, such as type-II Dirac cones and strained graphene. |
| title | Symmetric Tensor Coupling in Holographic Mean-Field Theory: Deformed Dirac Cones |
| topic | High Energy Physics - Theory Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2502.05871 |