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arXiv · 2609.13080

Trace formulas for TBG

Henry Zeng
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Abstract

Becker et al. produced a striking trace formula for the sum of fourth powers of generalized magic angles, $ θ$, for the chiral model of twisted bilayer graphene (TBG) with the exact Bistritzer--MacDonald potential: $\sum θ^{4} = 8 π/ \sqrt 3 $. The purpose of this note is to generalize this formula to a larger class of potentials satisfying the symmetries of the model.

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Henry Zeng. 2026-09-11. Trace formulas for TBG. https://arxiv.org/abs/2609.13080

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