Rare regions and avoided quantum criticality in disordered Weyl semimetals and superconductors

JH Pixley, JH Wilson - Annals of Physics, 2021 - Elsevier
Disorder in Weyl semimetals and superconductors is surprisingly subtle, attracting attention
and competing theories in recent years. In this brief review, we discuss the current …

Vanishing density of states in weakly disordered Weyl semimetals

M Buchhold, S Diehl, A Altland - Physical Review Letters, 2018 - APS
The Brillouin zone of the clean Weyl semimetal contains points at which the density of states
(DOS) vanishes. Previous work suggested that below a certain critical concentration of …

Nodal points of Weyl semimetals survive the presence of moderate disorder

M Buchhold, S Diehl, A Altland - Physical Review B, 2018 - APS
In this work we address the physics of individual three-dimensional Weyl nodes subject to a
moderate concentration of disorder. Previous analysis indicates the presence of a quantum …

Nodal vacancy bound states and resonances in three-dimensional Weyl semimetals

JP Santos Pires, SM João, A Ferreira, B Amorim… - Physical Review B, 2022 - APS
The electronic structure of a cubic T-symmetric Weyl semimetal is analyzed in the presence
of atomic-sized vacancy defects. Isolated vacancies are shown to generate nodal bound …

Avoided quantum criticality in exact numerical simulations of a single disordered Weyl cone

JH Wilson, DA Huse, S Das Sarma, JH Pixley - Physical Review B, 2020 - APS
Existing theoretical works differ on whether three-dimensional Dirac and Weyl semimetals
are stable to a short-range-correlated random potential. Numerical evidence suggests the …

Breakdown of universality in three-dimensional Dirac semimetals with random impurities

JPS Pires, B Amorim, A Ferreira, İ Adagideli… - Physical Review …, 2021 - APS
Dirac-Weyl semimetals are unique three-dimensional (3D) phases of matter with gapless
electrons and novel electrodynamic properties believed to be robust against weak …

Surface quantum critical phenomena in disordered Dirac semimetals

E Brillaux, AA Fedorenko, IA Gruzberg - Physical Review B, 2024 - APS
We study a non-Anderson disorder driven quantum phase transition in a semi-infinite Dirac
semimetal with a flat boundary. The conformally invariant boundary conditions, which …

Phase diagram of three dimensional disordered nodal-line semimetals: weak localization to Anderson localization

KX Jia, XY Liu, R Ma, H Geng, L Sheng… - New Journal of …, 2023 - iopscience.iop.org
Nodal-line semimetals are new members of the topological materials family whose
experimental characterization has seen recent progress using both ARPES and quantum …

Superfluid-Insulator Transition unambiguously detected by entanglement in one-dimensional disordered superfluids

GA Canella, VV França - Scientific reports, 2019 - nature.com
We use entanglement to track the superfluid-insulator transition (SIT) in disordered fermionic
superfluids described by the one-dimensional Hubbard model. Entanglement is found to …

Multifractality at the Weyl-semimetal–diffusive-metal transition for generic disorder

E Brillaux, D Carpentier, AA Fedorenko - Physical Review B, 2019 - APS
A Weyl semimetal is a three-dimensional topological gapless phase. In the presence of
strong enough disorder it undergoes a quantum transition towards a diffusive metal phase …