Fast state transfer via loop weights
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866917227079401472 |
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| author | Lippner, Gabor Shi, Yujia |
| author_facet | Lippner, Gabor Shi, Yujia |
| contents | We prove that almost-linear-time high-fidelity state transfer is achievable in a quantum spin chain using loop weights at the second and second-to-last nodes. We provide specific parameter values, and using a careful analysis of the eigenvectors we make precise quantitative estimates of the transfer time and strength. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_20237 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Fast state transfer via loop weights Lippner, Gabor Shi, Yujia Quantum Physics Combinatorics 05C50, 81P45 We prove that almost-linear-time high-fidelity state transfer is achievable in a quantum spin chain using loop weights at the second and second-to-last nodes. We provide specific parameter values, and using a careful analysis of the eigenvectors we make precise quantitative estimates of the transfer time and strength. |
| title | Fast state transfer via loop weights |
| topic | Quantum Physics Combinatorics 05C50, 81P45 |
| url | https://arxiv.org/abs/2601.20237 |