2 papers
quant-ph2026
Real-space topological characterization of quasiperiodic quantum walks: Boundary-dependent phases and the Schur index
F. Iwase
We study the topological properties of one-dimensional discrete-time quantum walks with Fibonacci quasiperiodic modulation. Spectral analysis under open boundary conditions reveals…
cond-mat.dis-nn2026
Critical quantum states and hierarchical spectral statistics in a Cantor potential
F. Iwase
We study the spectral statistics and wave-function properties of a one-dimensional quantum system subject to a Cantor-type fractal potential. By analyzing the nearest-neighbor leve…