3 papers
cond-mat.supr-con2025
Symmetries of electron interactions in Hubbard models of unconventional superconductors
Sergei Urazhdin, Yiou Zhang
We use symmetry arguments to show that the matrix elements of electron-electron interaction on a lattice reach extrema in states composed of wavevectors near high-symmetry points o…
cond-mat.mes-hall2025
The role of electron interactions in a failed insulator revealed by shot noise
Mateusz Szurek, Hanqiao Cheng, Zilu Pang +2
In materials known as failed insulators, electrical resistivity increases as temperature decreases, yet does not diverge - a phenomenon inconsistent with single-particle theories.…
cond-mat.mtrl-sci2025
Evidence for Bose liquid from anomalous shot noise in nanojunctions of bad metal beta-Ta
Yiou Zhang, Chendi Xie, John Bacsa +2
We report anomalous shot noise in nanojunctions of beta-tantalum, a ``bad" metal whose electronic properties are inconsistent with the Fermi liquid theory. Fano factors cluster aro…