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

Quantum Gases 2026-01-23 v3 Statistical Mechanics Strongly Correlated Electrons Quantum Physics

Abstract

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.

Keywords

Cite

@article{arxiv.2501.00552,
  title  = {Quantum many-body dynamics for fermionic t-J model simulated with atom arrays},
  author = {Ye-Bing Zhang and Xin-Chi Zhou and Bao-Zong Wang and Xiong-Jun Liu},
  journal= {arXiv preprint arXiv:2501.00552},
  year   = {2026}
}

Comments

24 pages, 11 figures, updates have been made according to the feedback from referees

R2 v1 2026-06-28T20:53:31.370Z