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| Stripes, pair density wave, and holon Wigner crystal in single-band Hubbard model on diagonal square lattice | |
| 2024-09-27 | |
| 状态 | 已发表 |
| 摘要 | We investigate the ground-state properties of the Hubbard model on wide diagonal square cylinders, rotated byÂ Ï /4 relative to the regular lattice orientation. Using state-of-the-art density matrix renormalization group calculations with a large number of states, we convincingly demonstrate the development of a unidirectional charge density wave (CDW) characterized by infinite-length stripes along the primitive vector of square lattice in models with next-nearest-neighbor hopping t′ = â 0.1 â ¼ â 0.3 and doping δ â ¼ 14%. Intriguingly, analysis of pair-pair correlation functions along these stripes reveals incommensurate pair density wave (PDW) superconductivity with diverged susceptibility. To the best of our knowledge, this is probably the first controlled numerical evidence of dominant PDW in the single-band Hubbard model on square lattices. At lower doping δ â ¼ 10%, we observed the formation of an additional CDW order within each stripe, which aligns across different stripes, forming a holon Wigner crystal phase. The spin pattern retains antiferromagnetic stripes with anti-phase domain walls. The ordering momentum of this emerged CDW order is remarkably close to the center-of-mass momentum of Cooper pairs in the PDW phase, suggesting a multifaceted relationship between CDW and PDW ordering. |
| 语种 | 英语 |
| DOI | arXiv:2409.18833 |
| 相关网址 | 查看原文 |
| 出处 | Arxiv |
| 收录类别 | PPRN.PPRN |
| WOS记录号 | PPRN:100705772 |
| WOS类目 | Physics, Condensed Matter |
| 文献类型 | 预印本 |
| 条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/433535 |
| 专题 | 物质科学与技术学院 物质科学与技术学院_博士生 物质科学与技术学院_PI研究组_蒋易凡组 |
| 通讯作者 | Jiang, Yi-Fan |
| 作者单位 | ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Zhi,Liu, Gui-Xin,Jiang, Yi-Fan. Stripes, pair density wave, and holon Wigner crystal in single-band Hubbard model on diagonal square lattice. 2024. |
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