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arXiv · 2403.05015

Quantum Many-body Scar Models in One Dimensional Spin Chains

Jia-Wei Wang·Xiang-Fa Zhou·Guang-Can Guo·Zheng-Wei Zhou
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Abstract

The phenomenon of quantum many-body scars has received widespread attention both in theoretical and experimental physics in recent years due to its unique physical properties. In this paper, based on the $su(2)$ algebraic relations, we propose a general method for constructing scar models by combining simple modules.This allows us to investigate many-body scar phenomena in high-spin systems. We numerically verify the thermalization and non-integrability of this model and demonstrate the dynamical properties of the scar states. We also provide a theoretical analysis of the properties of these scar states. For spin-$1$ case, we find that our 1D chain model reduces to the famous PXP model[C. J. Turner et al. Phys. Rev. B 98, 155134(2018)] under special parameter condition. In addition, due to the continuous tunability of the parameters, our model also enables us to investigate the transitions of QMBS from non-integrable to integrable system.

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Jia-Wei Wang, Xiang-Fa Zhou, Guang-Can Guo, Zheng-Wei Zhou. 2024-03-08. Quantum Many-body Scar Models in One Dimensional Spin Chains. https://arxiv.org/abs/2403.05015

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