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This research establishes a rigorous mathematical framework for approximating eigenfunctions in complex aperiodic crystals using Dirac and Schrödinger operators with quantified error bounds. By bridging microscopic periodicity with macroscopic effects, the work provides essential theoretical tools for modeling electronic behavior in advanced materials relevant to quantum Hall systems and honeycomb lattices. Such precision is critical for advancing computational methods that simulate non-standard crystalline structures without relying on simple translational symmetry assumptions.
Zhejiang University Finds Eigenfunctions with O(ε^(m/2 + 1/4)) Accuracy

Researchers at Zhejiang University have demonstrated the construction of approximate eigenfunctions for aperiodic crystals, achieving 𝒪(ε^(m/2 +.
Long Meng from the Center for Interdisciplinary Applied Mathematics and the Institute of Fundamental and Transdisciplinary Research at Zhejiang University, China, has developed a mathematical framework for constructing highly accurate approximate eigenfunctions for a broad class of aperiodic crystal Hamiltonians. The work considers Hamiltonians combining either Dirac or Schrödinger…
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