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Quantum many-body dynamics for fermionic t-J model simulated with atom arrays

Quantum many-body dynamics for fermionic t-J model simulated with atom arrays

来源:Arxiv_logoArxiv
英文摘要

The fermionic t-J model has been widely recognized as a canonical model for broad range of strongly correlated phases, particularly the high-Tc superconductor. Simulating this model with controllable quantum platforms offers new possibilities to probe high-Tc physics, yet suffering challenges. Here we propose a novel scheme to realize a highly-tunable extended t-J model in a programmable Rydberg-dressed tweezer array. Through engineering the Rydberg-dressed dipole-dipole interaction and inter-tweezer couplings, the fermionic t-J model with independently tunable exchange and hopping couplings is achieved. With the high tunability, we explore quantum many-body dynamics in the large J/t limit, a regime well beyond the conventional optical lattices and cuprates, and predict an unprecedented many-body self-pinning effect enforced by local quantum entanglement with emergent conserved quantities. The self-pinning effect leads to novel nonthermal quantum many-body dynamics, which violates eigenstate thermalization hypothesis in Krylov subspace. Our prediction opens a new horizon in exploring exotic quantum many-body physics with t-J model, and shall also make a step towards simulating the high-Tc physics in neutral atom systems.

Ye-Bing Zhang、Xin-Chi Zhou、Bao-Zong Wang、Xiong-Jun Liu

物理学

Ye-Bing Zhang,Xin-Chi Zhou,Bao-Zong Wang,Xiong-Jun Liu.Quantum many-body dynamics for fermionic t-J model simulated with atom arrays[EB/OL].(2025-07-08)[2025-07-25].https://arxiv.org/abs/2501.00552.点此复制

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