{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Cai X"],"funding":["MOSTC","New Cornerstone Science Foundation","National Science Foundation of China","National Science Foundation (NSF)"],"pagination":["e2426111122"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12377744"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["122(33)"],"pubmed_abstract":["A quantum spin liquid (QSL) is an exotic insulating phase with emergent gauge fields and fractionalized excitations. However, the unambiguous demonstration of the existence of a QSL in a \"nonengineered\" microscopic model (or in any material) remains challenging. Here, using numerically exact sign-problem-free quantum Monte Carlo simulations, we show that a QSL arises in a nonengineered electron-phonon model. Specifically, we investigate the ground-state phase diagram of the bond Su-Schrieffer-Heeger model on a 2D triangular lattice at (one electron per site), which we show includes a QSL phase which is fully gapped, exhibits no symmetry-breaking order, and supports deconfined fractionalized holon excitations. This suggests promising routes for finding QSLs in realistic materials and high-<i>T</i><sub><i>c</i></sub> superconductivity by lightly doping them."],"journal":["Proceedings of the National Academy of Sciences of the United States of America"],"pubmed_title":["Quantum spin liquid from electron-phonon coupling."],"pmcid":["PMC12377744"],"funding_grant_id":["Xplorer Prize","2021YFA1400100","12347107","DMR-2310312"],"pubmed_authors":["Kivelson SA","Han Z","Yao H","Cai X","Li ZX"],"additional_accession":[]},"is_claimable":false,"name":"Quantum spin liquid from electron-phonon coupling.","description":"A quantum spin liquid (QSL) is an exotic insulating phase with emergent gauge fields and fractionalized excitations. However, the unambiguous demonstration of the existence of a QSL in a \"nonengineered\" microscopic model (or in any material) remains challenging. Here, using numerically exact sign-problem-free quantum Monte Carlo simulations, we show that a QSL arises in a nonengineered electron-phonon model. Specifically, we investigate the ground-state phase diagram of the bond Su-Schrieffer-Heeger model on a 2D triangular lattice at (one electron per site), which we show includes a QSL phase which is fully gapped, exhibits no symmetry-breaking order, and supports deconfined fractionalized holon excitations. This suggests promising routes for finding QSLs in realistic materials and high-<i>T</i><sub><i>c</i></sub> superconductivity by lightly doping them.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Aug","modification":"2026-05-10T04:21:04.618Z","creation":"2026-04-08T01:28:21.199Z"},"accession":"S-EPMC12377744","cross_references":{"pubmed":["40789028"],"doi":["10.1073/pnas.2426111122"]}}