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Magnetization of Electronic Ground States in Frustrated Superstable Graphs
F P M Méndez-Córdoba1,2,3,4, J Tindall5, D Jaksch1,2,6
1The Hamburg Centre for Ultrafast Imaging, Luruper Chaussee 149, Hamburg D-22761, Germany.
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.
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