TBPLaS: A tight-binding package for large-scale simulation

Y Li, Z Zhan, X Kuang, Y Li, S Yuan - Computer Physics Communications, 2023 - Elsevier
TBPLaS is an open-source software package for the accurate simulation of physical systems
with arbitrary geometry and dimensionality utilizing the tight-binding (TB) theory. It has an …

Hall conductivity of a Sierpiński carpet

AA Iliasov, MI Katsnelson, S Yuan - Physical Review B, 2020 - APS
We calculate the Hall conductivity of a Sierpiński carpet using Kubo-Bastin formula. The
quantization of Hall conductivity disappears when we increase the depth of the fractal, and …

Existence of robust edge currents in Sierpiński fractals

M Fremling, M van Hooft, CM Smith, L Fritz - Physical Review Research, 2020 - APS
We investigate the Hall conductivity in a Sierpiński carpet, a fractal of Hausdorff dimension
df= ln (8)/ln (3)≈ 1.893, subject to a perpendicular magnetic field. We compute the Hall …

Topology in the Sierpiński-Hofstadter problem

M Brzezińska, AM Cook, T Neupert - Physical Review B, 2018 - APS
Using the Sierpiński carpet and gasket, we investigate whether fractal lattices embedded in
two-dimensional space can support topological phases when subjected to a homogeneous …

Anyons and fractional quantum Hall effect in fractal dimensions

S Manna, B Pal, W Wang, AEB Nielsen - Physical Review Research, 2020 - APS
The fractional quantum Hall effect is a paradigm of topological order and has been studied
thoroughly in two dimensions. Here, we construct a different type of fractional quantum Hall …

Higher-order topological Anderson insulator on the Sierpiński lattice

H Chen, ZR Liu, R Chen, B Zhou - Chinese Physics B, 2023 - iopscience.iop.org
Disorder effects on topological materials in integer dimensions have been extensively
explored in recent years. However, its influence on topological systems in fractional …

The Fractal-Lattice Hubbard Model

M Conte, V Zampronio, M Röntgen, CM Smith - Quantum, 2024 - quantum-journal.org
Here, we investigate the fractal-lattice Hubbard model using various numerical methods:
exact diagonalization, the self-consistent diagonalization of a (mean-field) Hartree-Fock …

Power-law energy level spacing distributions in fractals

AA Iliasov, MI Katsnelson, S Yuan - Physical Review B, 2019 - APS
In this paper we investigate the energy spectrum statistics of fractals at the quantum level.
We show that the energy level distribution of a fractal follows a power-law behavior, if its …

Deterministic chaos and fractal entropy scaling in Floquet conformal field theories

DS Ageev, AA Bagrov, AA Iliasov - Physical Review B, 2021 - APS
In this Letter, we study two-dimensional Floquet conformal field theory, where the external
periodic driving is described by iterated logistic or tent maps. These maps are known to be …

Quantum transport in self-similar graphene carpets

G Bouzerar, D Mayou - Physical Review Research, 2020 - APS
Fractals, a fascinating mathematical concept made popular in the 1980s, has remained for
decades mainly a beautiful scientific curiosity. With the tremendous advances in …