Emergent SU(2)$_1$ conformal symmetry in the spin-1/2 Kitaev-Gamma chain with a Dzyaloshinskii-Moriya interaction
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2022
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| _version_ | 1866916822682435584 |
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| author | Yang, Wang Nocera, Alberto Xu, Chao Ma, Shicheng Adhikary, Arnab Affleck, Ian |
| author_facet | Yang, Wang Nocera, Alberto Xu, Chao Ma, Shicheng Adhikary, Arnab Affleck, Ian |
| contents | We study the one-dimensional spin-1/2 Kitaev-Gamma model with a bond-dependent Dzyaloshinskii-Moriya (DM) interaction, which can be induced by an electric field applied in the third direction where the first and second directions refer to the two bond directions in the model. By a combination of field theory and symmetry analysis, an extended gapless phase with an emergent SU(2)$_1$ conformal symmetry is found in the phase diagram of the spin-1/2 Kitaev-Gamma-DM chain. The analytic predictions are in good agreements with numerical results obtained from density matrix renormalization group simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2204_13810 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Emergent SU(2)$_1$ conformal symmetry in the spin-1/2 Kitaev-Gamma chain with a Dzyaloshinskii-Moriya interaction Yang, Wang Nocera, Alberto Xu, Chao Ma, Shicheng Adhikary, Arnab Affleck, Ian Strongly Correlated Electrons We study the one-dimensional spin-1/2 Kitaev-Gamma model with a bond-dependent Dzyaloshinskii-Moriya (DM) interaction, which can be induced by an electric field applied in the third direction where the first and second directions refer to the two bond directions in the model. By a combination of field theory and symmetry analysis, an extended gapless phase with an emergent SU(2)$_1$ conformal symmetry is found in the phase diagram of the spin-1/2 Kitaev-Gamma-DM chain. The analytic predictions are in good agreements with numerical results obtained from density matrix renormalization group simulations. |
| title | Emergent SU(2)$_1$ conformal symmetry in the spin-1/2 Kitaev-Gamma chain with a Dzyaloshinskii-Moriya interaction |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2204.13810 |