One-dimensional quantum many body systems with long-range interactions

S Maity, U Bhattacharya, A Dutta - Journal of Physics A …, 2019 - iopscience.iop.org
The presence of algebraically decaying long-range interactions may alter the critical as well
as topological behaviour of a quantum many-body systems. However, when the interaction …

Majorana bound states in semiconducting nanostructures

K Laubscher, J Klinovaja - Journal of Applied Physics, 2021 - pubs.aip.org
In this Tutorial, we give a pedagogical introduction to Majorana bound states (MBSs) arising
in semiconducting nanostructures. We start by briefly reviewing the well-known Kitaev chain …

Out-of-equilibrium phase diagram of long-range superconductors

P Uhrich, N Defenu, R Jafari, JC Halimeh - Physical Review B, 2020 - APS
Within the ultimate goal of classifying universality in quantum many-body dynamics,
understanding the relation between out-of-equilibrium and equilibrium criticality is a crucial …

Unconventional scaling at non-Hermitian critical points

R Arouca, CH Lee, C Morais Smith - Physical Review B, 2020 - APS
Critical phase transitions contain a variety of deep and universal physics and are intimately
tied to thermodynamic quantities through scaling relations. Yet, these notions are …

Entanglement entropy in the long-range Kitaev chain

F Ares, JG Esteve, F Falceto, AR de Queiroz - Physical Review A, 2018 - APS
In this paper we complete the study on the asymptotic behavior of the entanglement entropy
for Kitaev chains with long-range pairing. We discover that when the couplings decay with …

Unifying topological phase transitions in non-interacting, interacting, and periodically driven systems

P Molignini, R Chitra, W Chen - Europhysics Letters, 2020 - iopscience.iop.org
Topological phase transitions occur in real materials as well as quantum engineered
systems, all of which differ greatly in terms of dimensionality, symmetries, interactions, and …

Topological quantum phase transitions and criticality in a longer-range Kitaev chain

YR Kartik, RR Kumar, S Rahul, N Roy, S Sarkar - Physical Review B, 2021 - APS
In an attempt to theoretically investigate the quantum phase transition and criticality in
topological models, we study a Kitaev chain with longer-range couplings (finite number of …

First-order topological quantum phase transition in a strongly correlated ladder

S Barbarino, G Sangiovanni, JC Budich - Physical Review B, 2019 - APS
We report on the discovery of a quantum tricritical point (QTP) separating a line of first-order
topological quantum phase transitions from a continuous transition regime in a strongly …

Topological footprints of the Kitaev chain with long-range superconducting pairings at a finite temperature

U Bhattacharya, A Dutta - Physical Review B, 2018 - APS
We study the one-dimensional Kitaev chain with long-range superconductive pairing terms
at a finite temperature where the system is prepared in a mixed state in equilibrium with a …

Thermodynamics of a higher-order topological insulator

R Arouca, SN Kempkes, C Morais Smith - Physical Review Research, 2020 - APS
We investigate the order of the topological quantum phase transition in a two-dimensional
quadrupolar topological insulator within a thermodynamic approach. Using numerical …