تقرير
Confinement of many-body Bethe strings
| العنوان: | Confinement of many-body Bethe strings |
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| المؤلفون: | Yang, Jiahao, Xie, Tao, Nikitin, S. E., Wu, Jianda, Podlesnyak, A. |
| المصدر: | Phys. Rev. B 108, L020402 (2023) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science, Condensed Matter - Statistical Mechanics |
| الوصف: | Based on Bethe-ansatz approach and inelastic neutron scattering experiments, we reveal evolution of confinement of many-body Bethe strings in ordered regions of quasi-one-dimensional antiferromagnet $\rm YbAlO_3$. In the antiferromagnetic phase, the spin dynamics is dominated by the confined length-1 Bethe strings, whose dominancy in the high-energy branch of the excitation spectrum yields to the confined length-2 Bethe strings when the material is tuned to the spin-density-wave phase. In the thermal-induced disordered region, the confinement effect disappears, and the system restores the conventional quantum integrable physics of the one-dimensional Heisenberg model. Our results establish a unified picture based on Bethe string for the spin dynamics in different magnetic phases of $\rm YbAlO_3$, and thus provide profound insight into the many-body quantum magnetism. Comment: 5 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.108.L020402 |
| URL الوصول: | http://arxiv.org/abs/2212.03442 |
| رقم الأكسشن: | edsarx.2212.03442 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.108.L020402 |
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