On the magnetization of electronic ground states in frustrated superstable graphs
F. P. M. Méndez-Córdoba, J. Tindall, D. Jaksch, F. Schlawin
公開日: 2025/9/8
Abstract
Geometric frustration lies at the heart of many unconventional quantum phases in strongly interacting electron systems. Here, we analytically determine the ground state magnetization of the half-filled Hubbard model on frustrated geometries where superstable states -- eigenstates which are robust against frustration -- are manifest. Our results apply to a broad class of lattices, including those where altermagnetic and superconducting states are known to emerge. Furthermore, they provide evidence for phase transitions involving a geometric rearrangement of magnetic correlations in the thermodynamic limit.