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cond-mat.str-el2026
Emergent Symmetry-Protected Topological Phases via Polyakov Confinement in Quantum Spin Systems
Li-Wei He, Shun-Li Yu, Jian-Xin Li
A main theme in modern condensed matter physics is the emergence of fractionalized excitations and gauge structures from quantum spin systems. However, understanding how these exot…
cond-mat.str-el2026
Relationship between doping-induced in-gap states and spin excitations in Kitaev-Hubbard models
Si-Qi Hou, Shun-Li Yu, Zhao-Yang Dong +1
We investigate the connection between doping-induced in-gap states and underlying spin excitations in Mott insulators by employing cluster perturbation theory on one-dimensional (1…
cond-mat.str-el2026
Correlation-Driven Orbital-Selective Fermiology and Superconductivity in the Bilayer Nickelate LaNiO
Yong-Yue Zong, Shun-Li Yu, Jian-Xin Li
Recent angle-resolved photoemission measurements on LaNiO have challenged the density-functional-theory-based picture of three Fermi surfaces by revealing that the $d_{…