Higher Berry curvature via iMPS on a 4D Chern insulator model produces DDKS numbers whose phase diagram is exactly congruent to the analytic second Chern number phase diagram.
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Higher Berry curvature, second Chern numbers and magnetoelectric coupling in crystalline insulators
Higher Berry curvature via iMPS on a 4D Chern insulator model produces DDKS numbers whose phase diagram is exactly congruent to the analytic second Chern number phase diagram.