Emergent strength-dependent scale-free mobility edge in a nonreciprocal long-range Aubry-André-Harper model

GJ Liu, JM Zhang, SZ Li, Z Li - Physical Review A, 2024 - APS
We investigate the properties of the mobility edge in an Aubry-André-Harper model with
nonreciprocal long-range hop**. The results reveal that there can be a type of mobility …

Topological properties of the long-range Kitaev chain with Aubry-André-Harper modulation

J Fraxanet, U Bhattacharya, T Grass, D Rakshit… - Physical Review …, 2021 - APS
We present a detailed study of the topological properties of the Kitaev chain with long-range
pairing terms and in the presence of an Aubry-André-Harper on-site potential. Specifically …

Topological superconductivity in Fibonacci quasicrystals

A Kobiałka, OA Awoga, M Leijnse, T Domański… - Physical Review B, 2024 - APS
We investigate the properties of a Fibonacci quasicrystal (QC) arrangement of a one-
dimensional topological superconductor, such as a magnetic atom chain deposited on a …

Quantum criticality and universality in the -wave-paired Aubry-André-Harper model

T Lv, TC Yi, L Li, G Sun, WL You - Physical Review A, 2022 - APS
We investigate the quantum criticality and universality in Aubry-André-Harper (AAH) model
with p-wave superconducting pairing Δ in terms of the generalized fidelity susceptibility …

Localization and multifractal properties of the long-range Kitaev chain in the presence of an Aubry-André-Harper modulation

J Fraxanet, U Bhattacharya, T Grass, M Lewenstein… - Physical Review B, 2022 - APS
In the presence of quasiperiodic potentials, the celebrated Kitaev chain presents an
intriguing phase diagram with ergodic, localized, and multifractal states. In this work, we …

Dynamics of a quantum phase transition in the Aubry-André-Harper model with -wave superconductivity

X Tong, YM Meng, X Jiang, C Lee, GDM Neto… - Physical Review B, 2021 - APS
We investigate the nonequilibrium dynamics of the one-dimension Aubry-André-Harper
model with p-wave superconductivity by changing the potential strength with slow and …

Unconventional real-complex spectral transition and Majorana zero modes in nonreciprocal quasicrystals

ZH Wang, F Xu, L Li, DH Xu, B Wang - Physical Review B, 2021 - APS
Non-Hermiticity from nonreciprocal hop**s has recently been shown to induce exotic non-
Hermitian phenomena. Here, we study a class of nonreciprocal quasicrystal …

Critical and topological phases of dimerized Kitaev chain in presence of quasiperiodic potential

S Roy, SN Nabi, S Basu - Physical Review B, 2023 - APS
We investigate localization and topological properties of a dimerized Kitaev chain with p-
wave superconducting correlations and a quasiperiodically modulated chemical potential …

Chebyshev polynomial approach to Loschmidt echo: Application to quench dynamics in two-dimensional quasicrystals

NA Khan, S Ye, Z Zhou, S Cheng, G **anlong - Physical Review E, 2024 - APS
The understanding of quantum phase transitions in disordered or quasicrystal media is a
central issue in condensed matter physics. In this paper we investigate localization …

Unraveling multifractality and mobility edges in quasiperiodic Aubry-André-Harper chains through high-harmonic generation

M Dziurawiec, JO de Almeida, ML Bera, M Płodzień… - Physical Review B, 2024 - APS
We show that high-harmonic spectroscopy offers an advanced avenue for probing electronic
properties of quasicrystals beyond the linear response regime. Focusing on Aubry-André …