Chiral spin liquid and chiral antiferromagnetism in half-filled moiré Hubbard model: possible applications to twisted bilayer TMDs

[2608.14503] Chiral spin liquid and chiral antiferromagnetism in half-filled moiré Hubbard model: possible applications to twisted bilayer TMDs Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Strongly Correlated Electrons arXiv:2608.14503 (cond-mat) [Submitted on 14 Aug 2026] Title: Chiral spin liquid and chiral antiferromagnetism in half-filled moiré Hubbard model: possible applications to twisted bilayer TMDs Authors: Chuyi Tuo , Hong Yao View a PDF of the paper titled Chiral spin liquid and chiral antiferromagnetism in half-filled moir\'e Hubbard model: possible applications to twisted bilayer TMDs, by Chuyi Tuo and 1 other authors View PDF HTML (experimental) Abstract: Twisted transition metal dichalcogenides offer an exceptionally tunable moiré platform for studying correlation physics beyond conventional condensed matter systems. In particular, the intriguing interplay between the displacement field and the twist angle remains to be fully resolved. In this paper, we use large-scale density matrix renormalization group simulations to study the minimal moiré Hubbard model on a triangular lattice at half-filling, where the displacement field effect is captured by a spin-dependent staggered flux. We find that the displacement field significantly enriches the triangular Hubbard phase diagram in several qualitative ways. It rapidly destabilizes the chiral spin liquid phase beyond a narrow weak-field regime, induces pronounced chiral correlations in the strong-coupling $120^\circ$-antiferromagnetic phase, and stabilizes incommensurate spin-density wave phases at weaker coupling. We further find signatures of a continuous transition between the chiral spin liquid and chiral antiferromagnetic phases at a finite displacement field, potentially driven by spinon condensation. Our results uncover rich displacement-field-driven many-body physics and provide useful guidance for future experiments in moiré superlattice systems. Comments: 12 pages, 7 figures Subjects: Strongly Correlated Electrons (cond-mat.str-el) ; Superconductivity (cond-mat.supr-con) Cite as: arXiv:2608.14503 [cond-mat.str-el] (or arXiv:2608.14503v1 [cond-mat.str-el] for this version) https://doi.org/10.48550/arXiv.2608.14503 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Chuyi Tuo [ view email ] [v1] Fri, 14 Aug 2026 17:17:33 UTC (13,197 KB) Full-text links: Access Paper: View a PDF of the paper titled Chiral spin liquid and chiral antiferromagnetism in half-filled moir\'e Hubbard model: possible applications to twisted bilayer TMDs, by Chuyi Tuo and 1 other authors View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.str-el < prev | next > new | recent | 2026-08 Change to browse by: cond-mat cond-mat.supr-con References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... 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