Termination-Controlled Fractionalization and Hybridization at Topological Interfaces in Organic Spin Chains
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866908983962370048 |
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| author | Anindya, Khalid N. Guo, Hong |
| author_facet | Anindya, Khalid N. Guo, Hong |
| contents | A single organic spin platform hosts both dimerized $S=\tfrac{1}{2}$ and effective Haldane $S=1$ sectors, linked by bond-texture inversion. At the junction, the fractional mode is controlled by termination parity: quenched by local fusion at one termination and released as an uncompensated spin-$\tfrac{1}{2}$-like degree of freedom at the parity-shifted one. Two such internal boundary modes of a finite embedded Haldane domain hybridize with an exponentially decaying splitting, establishing termination parity as a design principle for engineering and coupling fractional boundary modes. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_19498 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Termination-Controlled Fractionalization and Hybridization at Topological Interfaces in Organic Spin Chains Anindya, Khalid N. Guo, Hong Strongly Correlated Electrons Materials Science Quantum Physics A single organic spin platform hosts both dimerized $S=\tfrac{1}{2}$ and effective Haldane $S=1$ sectors, linked by bond-texture inversion. At the junction, the fractional mode is controlled by termination parity: quenched by local fusion at one termination and released as an uncompensated spin-$\tfrac{1}{2}$-like degree of freedom at the parity-shifted one. Two such internal boundary modes of a finite embedded Haldane domain hybridize with an exponentially decaying splitting, establishing termination parity as a design principle for engineering and coupling fractional boundary modes. |
| title | Termination-Controlled Fractionalization and Hybridization at Topological Interfaces in Organic Spin Chains |
| topic | Strongly Correlated Electrons Materials Science Quantum Physics |
| url | https://arxiv.org/abs/2604.19498 |