TBPLaS: A tight-binding package for large-scale simulation
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 …
with arbitrary geometry and dimensionality utilizing the tight-binding (TB) theory. It has an …
Hall conductivity of a Sierpiński carpet
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 …
quantization of Hall conductivity disappears when we increase the depth of the fractal, and …
Existence of robust edge currents in Sierpiński fractals
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 …
df= ln (8)/ln (3)≈ 1.893, subject to a perpendicular magnetic field. We compute the Hall …
Topology in the Sierpiński-Hofstadter problem
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 …
two-dimensional space can support topological phases when subjected to a homogeneous …
Anyons and fractional quantum Hall effect in fractal dimensions
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 …
thoroughly in two dimensions. Here, we construct a different type of fractional quantum Hall …
Higher-order topological Anderson insulator on the Sierpiński lattice
Disorder effects on topological materials in integer dimensions have been extensively
explored in recent years. However, its influence on topological systems in fractional …
explored in recent years. However, its influence on topological systems in fractional …
The Fractal-Lattice Hubbard Model
Here, we investigate the fractal-lattice Hubbard model using various numerical methods:
exact diagonalization, the self-consistent diagonalization of a (mean-field) Hartree-Fock …
exact diagonalization, the self-consistent diagonalization of a (mean-field) Hartree-Fock …
Power-law energy level spacing distributions in fractals
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 …
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
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 …
periodic driving is described by iterated logistic or tent maps. These maps are known to be …
Quantum transport in self-similar graphene carpets
Fractals, a fascinating mathematical concept made popular in the 1980s, has remained for
decades mainly a beautiful scientific curiosity. With the tremendous advances in …
decades mainly a beautiful scientific curiosity. With the tremendous advances in …