Remote spin control in Haldane spin chains
Fuente:
arXiv
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866918132604469248 |
|---|---|
| author | del Castillo, Y. Ferrón, A. Fernández-Rossier, J. |
| author_facet | del Castillo, Y. Ferrón, A. Fernández-Rossier, J. |
| contents | We consider the remote manipulation of the quantum state of the edge fractional spins of Haldane spin chains using a weak local perturbation on the other edge. We derive an effective four-level model that correctly captures the response of the local magnetization to local perturbations and we use it to show that applying a small local field on one edge of the chain induces a strong variation of the magnetization on the opposite edge. Using a Landau-Zener protocol, we show how local control of the field on one edge of the chain, implemented for instance with a spin-polarized scanning tunnel microscope tip, can adiabatically switch the magnetization direction on the other side of the chain. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_21544 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Remote spin control in Haldane spin chains del Castillo, Y. Ferrón, A. Fernández-Rossier, J. Mesoscale and Nanoscale Physics We consider the remote manipulation of the quantum state of the edge fractional spins of Haldane spin chains using a weak local perturbation on the other edge. We derive an effective four-level model that correctly captures the response of the local magnetization to local perturbations and we use it to show that applying a small local field on one edge of the chain induces a strong variation of the magnetization on the opposite edge. Using a Landau-Zener protocol, we show how local control of the field on one edge of the chain, implemented for instance with a spin-polarized scanning tunnel microscope tip, can adiabatically switch the magnetization direction on the other side of the chain. |
| title | Remote spin control in Haldane spin chains |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2508.21544 |