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cond-mat.str-el2026
Engineering correlated phases through manipulation of Van Hove singularities
Thomas P. Sheerin, Maria Ramirez, Chris A. Hooley +1
Controlling the ordered phases of correlated electron systems remains a central challenge in quantum materials design. Divergences in the electronic density of states, known as Van…
cond-mat.str-el2026
Counting Edge Modes with the Higher Berry Curvature: A Bulk Topological Order Parameter for Quantum Spin Chains
Adam J. McRoberts, Joe Crossley, Chris Hooley +1
We show that the higher Berry curvature (HBC) can be used to count the gapless edge modes created by an entanglement cut, and thus defines an integer-valued topological order param…