6 papers
Non-Fermi-Liquid Behaviors in Weakly Interacting Two-Dimensional Quasicrystals
Junmo Jeon, Shiro Sakai
Non-Fermi-liquid (NFL) behavior is usually associated with strong electronic correlations, quantum criticality, or singular fluctuations that invalidate the quasiparticle picture.…
Hyperuniform charge distributions and phase transitions in a generalized Aubry-André model
Lujia Xiang, Junmo Jeon, Shiro Sakai
We show the existence of distinct inhomogeneous charge distributions and a phase transition between them in aperiodic fermion systems. Using a generalized Aubry-André model as an…
Consistent Evaluation of Operators Involving the Position Operator in the Bloch Representation: Application to the Orbital Moment
Daehyeon An, Junmo Jeon, Se Kwon Kim
The position operator plays a central role in condensed-matter observables such as velocity, orbital moment, and electric polarization. In solid-state physics, the evaluation of op…
Quantum Hyperuniformity and Quantum Weight
Junmo Jeon, Shiro Sakai
Extending hyperuniformity from classical to quantum fluctuations in electron systems yields a framework that identifies quantum phase transitions and reveals underlying gap structu…
Delocalization Induced by Enhanced Hyperuniformity in One-Dimensional Disordered Systems
Junmo Jeon, Harukuni Ikeda, Shiro Sakai
In one dimension, any disorder is traditionally believed to localize all states. We show that this paradigm breaks down under hyperuniform disorder, which suppresses long-wavelengt…
Electron Model on Truchet Tiling: Extended-to-Localized Transitions, Mobility Edge, and Asymmetric Spectrum
Junmo Jeon, Shiro Sakai
Motivated by recent advances in the realization of Truchet-tiling structures in molecular networks and metal-organic frameworks, we investigate the wave localization issue in this…