Valence-bonds, spin liquids and unconventional criticality in a 1D Kondo insulator
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915308560711680 |
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| author | Hu, Nai Chao Huang, Rui-Zhen Bultinck, Nick |
| author_facet | Hu, Nai Chao Huang, Rui-Zhen Bultinck, Nick |
| contents | We consider a one-dimensional multi-orbital Kondo lattice model and show that by tuning the kinetic energy of the itinerant electrons it is possible to stabilize Kondo insulators with non-trivial spin physics. In particular, depending on the size of the exchange coupling between the local moments, we find kinetic-energy-driven transitions between a featureless Kondo insulator and a valence-bond solid or a gapless spin liquid. We also provide evidence for an unconventional continuous phase transition between two featureless Kondo insulators distinguished by their quantum numbers under reflection symmetry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_21619 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Valence-bonds, spin liquids and unconventional criticality in a 1D Kondo insulator Hu, Nai Chao Huang, Rui-Zhen Bultinck, Nick Strongly Correlated Electrons Statistical Mechanics Quantum Physics We consider a one-dimensional multi-orbital Kondo lattice model and show that by tuning the kinetic energy of the itinerant electrons it is possible to stabilize Kondo insulators with non-trivial spin physics. In particular, depending on the size of the exchange coupling between the local moments, we find kinetic-energy-driven transitions between a featureless Kondo insulator and a valence-bond solid or a gapless spin liquid. We also provide evidence for an unconventional continuous phase transition between two featureless Kondo insulators distinguished by their quantum numbers under reflection symmetry. |
| title | Valence-bonds, spin liquids and unconventional criticality in a 1D Kondo insulator |
| topic | Strongly Correlated Electrons Statistical Mechanics Quantum Physics |
| url | https://arxiv.org/abs/2505.21619 |