Critical Percolation without Fine-Tuning on the Surface of a Topological Superconductor
Sayed Ali Akbar Ghorashi, Yunxiang Liao, Matthew S. Foster
DOI 10.1103/PhysRevLett.121.016802 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We present numerical evidence that most two-dimensional surface states of a bulk topological superconductor (TSC) sit at an integer quantum Hall plateau transition. We study TSC surface states in class CI with quenched disorder. Low-energy (finite-energy) surface states were expected to be critically delocalized (Anderson localized). We confirm the low-energy picture, but find instead that finite-energy states are also delocalized, with universal statistics that are independent of the TSC winding number, and consistent with the spin quantum Hall plateau transition (percolation).
Similar papers
High Temperature Cuprate-Like Superconductivity at Surfaces and Interfaces
similarity 0.89J. C. Phillips · 2008 · arXiv:0811.1728
Source status unknown — claims are unverified
How spectrum-wide quantum criticality protects surface states of topological superconductors from Anderson localization: Quantum Hall plateau transitions (almost) all the way down
similarity 0.88Jonas F. Karcher & Matthew S. Foster · 2021 · arXiv:2101.08799
Source status unknown — claims are unverified
Superconductor-insulator transition in the absence of disorder
similarity 0.88M. C. Diamantini et al.
Source status unknown — claims are unverified
Topological surface states and Andreev bound states in superconducting iron pnictides
similarity 0.88Alexander Lau & Carsten Timm
Source status unknown — claims are unverified
Spontaneous superconducting islands and Hall voltage in superconductors with large electric penetration depth
similarity 0.87Jorge Berger
Source status unknown — claims are unverified
Superconductivity-induced Anderson localization
similarity 0.87D. E. Katsanos et al.
Source status unknown — claims are unverified