Symmetry-Protected Topological Phases in the Triangular Majorana-Hubbard Ladder
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866908996860903424 |
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| author | Holdhusen, Will Nocera, Alberto Zhu, Jian-Xin Rahmani, Armin |
| author_facet | Holdhusen, Will Nocera, Alberto Zhu, Jian-Xin Rahmani, Armin |
| contents | We map the phase diagram of the triangular-lattice Majorana-Hubbard model on a four-leg ladder using DMRG and variational uniform matrix product states, revealing a richer variety of phases than previously known. Analysis of entanglement-spectrum degeneracies and adiabatic connections identifies multiple symmetry-protected topological (SPT) phases. These phases could be realized in arrays of vortex-bound Majorana modes on the surface of a topological superconductor. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_24887 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Symmetry-Protected Topological Phases in the Triangular Majorana-Hubbard Ladder Holdhusen, Will Nocera, Alberto Zhu, Jian-Xin Rahmani, Armin Strongly Correlated Electrons We map the phase diagram of the triangular-lattice Majorana-Hubbard model on a four-leg ladder using DMRG and variational uniform matrix product states, revealing a richer variety of phases than previously known. Analysis of entanglement-spectrum degeneracies and adiabatic connections identifies multiple symmetry-protected topological (SPT) phases. These phases could be realized in arrays of vortex-bound Majorana modes on the surface of a topological superconductor. |
| title | Symmetry-Protected Topological Phases in the Triangular Majorana-Hubbard Ladder |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2604.24887 |