Termination-Controlled Fractionalization and Hybridization at Topological Interfaces in Organic Spin Chains

Fuente: arXiv
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Main Authors: Anindya, Khalid N., Guo, Hong
Format: Preprint
Published: 2026
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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
id 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