Long-range interacting quantum systems

N Defenu, T Donner, T Macrì, G Pagano, S Ruffo… - Reviews of Modern …, 2023 - APS
In this review recent investigations are summarized of many-body quantum systems with
long-range interactions, which are currently realized in Rydberg atom arrays, dipolar …

Topological edge modes and phase transitions in a critical fermionic chain with long-range interactions

WH Zhong, WL Li, YC Chen, XJ Yu - Physical Review A, 2024 - APS
Long-range interactions can fundamentally alter properties in gapped topological phases
such as emergent massive edge modes. However, recent research has shifted attention to …

Localization-driven quantum sensing

A Sahoo, U Mishra, D Rakshit - Physical Review A, 2024 - APS
We show that the delocalization-localization transition in quantum many-body (QMB)
systems are a compelling quantum resource for achieving quantum-enhanced sensitivity in …

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 …

Quasidisorder-induced topology

MF Madeira, PD Sacramento - Physical Review B, 2022 - APS
We study the effects of quasidisorder and Anderson disorder on a two-dimensional
topological superconductor with an applied external magnetic field. The cases of ap-wave …

Characterizing out-of-distribution generalization of neural networks: application to the disordered Su-Schrieffer-Heeger model

K Cybinski, M Płodzień, M Tomza… - Machine Learning …, 2024 - iopscience.iop.org
Abstract Machine learning (ML) is a promising tool for the detection of phases of matter.
However, ML models are also known for their black-box construction, which hinders …

Robust nonergodicity of the ground states in the ensemble

AK Das, A Ghosh, IM Khaymovich - Physical Review B, 2024 - APS
In various chaotic quantum many-body systems, the ground states show nontrivial athermal
behavior despite the bulk states exhibiting thermalization. Such athermal states play a …

Disorder-induced chiral and helical Majorana edge modes in a two-dimensional Ammann-Beenker quasicrystal

CB Hua, ZR Liu, T Peng, R Chen, DH Xu, B Zhou - Physical Review B, 2021 - APS
Recent research on disorder effects in topological phases in quasicrystalline systems has
received much attention. In this work, by numerically computing the (spin) Bott index and the …

Non-Hermitian Aubry-André-Harper model with short- and long-range -wave pairing

S Gandhi, JN Bandyopadhyay - Physical Review B, 2024 - APS
We investigate a non-Hermitian Aubry-André-Harper model with short-range as well as long-
range p-wave pairing. Here, the non-Hermiticity is introduced through the on-site potential. A …