2 papers
cond-mat.str-el2026
Interplay of ferromagnetism, nematicity and Fermi surface nesting in kagome flat band
Yuman He, Wentao Jiang, Siqi Wu +4
Recent experiment on Fe-doped CoSn has uncovered a series of correlated phases upon hole doping of the kagome flat bands. Among the phases observed, a nematic phase with a six- to…
quant-ph2025
Stabilizer Perturbation Theory: A Systematic Construction via Schrieffer-Wolff Transformation
Xuzhe Ying, Kangle Li, Hoi Chun Po
Perturbation theories provide valuable insights on quantum many-body systems. Systems of interacting particles, like electrons, are often treated perturbatively around exactly solv…