Decaying spectral oscillations in a Majorana wire with finite coherence length

C Fleckenstein, F Domínguez, N Traverso Ziani… - Physical Review B, 2018 - APS
Motivated by recent experiments, we investigate the excitation energy of a proximitized
Rashba wire in the presence of a position dependent pairing. In particular, we focus on the …

Coupled-wire constructions: a Luttinger liquid approach to topology

T Meng - The European Physical Journal Special Topics, 2020 - Springer
Coupled-wire constructions use bosonization to analytically tackle the strong interactions
underlying fractional topological states of matter. We give an introduction to this technique …

A short review of one-dimensional Wigner crystallization

NT Ziani, F Cavaliere, KG Becerra, M Sassetti - Crystals, 2020 - mdpi.com
The simplest possible structural transition that an electronic system can undergo is Wigner
crystallization. The aim of this short review is to discuss the main aspects of three recent …

Emerging topological bound states in Haldane model zigzag nanoribbons

S Traverso, M Sassetti, N Traverso Ziani - npj Quantum Materials, 2024 - nature.com
Zigzag nanoribbons hosting the Haldane Chern insulator model are considered. In this
context, a reentrant topological phase, characterized by the emergence of quasi zero …

Conductance signatures of odd-frequency superconductivity in quantum spin Hall systems using a quantum point contact

C Fleckenstein, NT Ziani, B Trauzettel - Physical Review B, 2018 - APS
Topological superconductors give rise to unconventional superconductivity, which is mainly
characterized by the symmetry of the superconducting pairing amplitude. However, since the …

Anomalous supercurrent and diode effect in locally perturbed topological Josephson junctions

S Fracassi, S Traverso, N Traverso Ziani… - Applied Physics …, 2024 - pubs.aip.org
The simultaneous breaking of time-reversal and inversion symmetry can lead to peculiar
effects in Josephson junctions, such as the anomalous Josephson effect or supercurrent …

Anomalous flux periodicity in proximitised quantum spin Hall constrictions

L Vigliotti, A Calzona, B Trauzettel… - New Journal of …, 2022 - iopscience.iop.org
We theoretically analyse a long constriction between the helical edge states of a two-
dimensional topological insulator. The constriction is laterally tunnel-coupled to two …

Spin-resolved electron waiting times in a quantum-dot spin valve

G Tang, F Xu, S Mi, J Wang - Physical Review B, 2018 - APS
We study the electronic waiting-time distributions (WTDs) in a noninteracting quantum-dot
spin valve by varying spin polarization and the noncollinear angle between the …

[HTML][HTML] Few-body precursors of topological frustration

FR De Filippi, AF Mello, D Sacco Shaikh, M Sassetti… - Symmetry, 2024 - mdpi.com
Spin 1/2 quantum spin chains represent the prototypical model for coupled two-level
systems. Consequently, they offer a fertile playground for both fundamental and …

Effects of the Vertices on the Topological Bound States in a Quasicrystalline Topological Insulator

S Traverso, N Traverso Ziani, M Sassetti - Symmetry, 2022 - mdpi.com
The experimental realization of twisted bilayer graphene strongly pushed the inspection of
bilayer systems. In this context, it was recently shown that a two layer Haldane model with a …