Family of Aperiodic Tilings with Tunable Quantum Geometric Tensor
arXiv:2505.13304 · doi:10.1103/dzqm-9kwj
Abstract
The strict geometric rules that define aperiodic tilings lead to the unique spectral and transport properties of quasicrystals, but also limit our ability to design them. In this Letter, we explore a novel example of a continuously tunable family of two-dimensional aperiodic tilings in which the underlying real-space geometry becomes a control knob of the wavefunction's quantum geometric tensor. The real-space geometry can be used to tune into topological phases occupying an expanded phase space compared to crystals, or into a disorder-driven topological Anderson insulator. The quantum metric can also be tuned continuously, opening new routes towards tunable single- and many-body physics in aperiodic solid-state and synthetic systems.
arXiv comment17 pages, 10 figures, 1 video. Published version. Includes link to the code repository
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