Many-body localization edge in the random-field Heisenberg chain

DJ Luitz, N Laflorencie, F Alet - Physical Review B, 2015 - APS
We present a large-scale exact diagonalization study of the one-dimensional spin-1/2
Heisenberg model in a random magnetic field. In order to access properties at varying …

Localization of Dirac fermions in finite-temperature gauge theory

M Giordano, TG Kovács - Universe, 2021 - mdpi.com
It is by now well established that Dirac fermions coupled to non-Abelian gauge theories can
undergo an Anderson-type localization transition. This transition affects eigenmodes in the …

Universality classes of the Anderson transitions driven by non-Hermitian disorder

X Luo, T Ohtsuki, R Shindou - Physical Review Letters, 2021 - APS
The interplay between non-Hermiticity and disorder plays an important role in condensed
matter physics. Here, we report the universal critical behaviors of the Anderson transitions …

Critical properties of the Anderson transition on random graphs: Two-parameter scaling theory, Kosterlitz-Thouless type flow, and many-body localization

I García-Mata, J Martin, O Giraud, B Georgeot… - Physical Review B, 2022 - APS
The Anderson transition in random graphs has raised great interest, partly out of the hope
that its analogy with the many-body localization (MBL) transition might lead to a better …

[PDF][PDF] Shift-invert diagonalization of large many-body localizing spin chains

F Pietracaprina, N Macé, DJ Luitz, F Alet - SciPost Physics, 2018 - scipost.org
We provide a pedagogical review on the calculation of highly excited eigenstates of
disordered interacting quantum systems which can undergo a many-body localization (MBL) …

Deep learning the quantum phase transitions in random two-dimensional electron systems

T Ohtsuki, T Ohtsuki - Journal of the Physical Society of Japan, 2016 - journals.jps.jp
Random electron systems show rich phases such as Anderson insulator, diffusive metal,
quantum Hall and quantum anomalous Hall insulators, Weyl semimetal, as well as …

Critical exponent for the Anderson transition in the three-dimensional orthogonal universality class

K Slevin, T Ohtsuki - New Journal of Physics, 2014 - iopscience.iop.org
We report a careful finite size scaling study of the metal–insulator transition in Anderson's
model of localization. We focus on the estimation of the critical exponent ν that describes the …

Statistics of eigenstates near the localization transition on random regular graphs

KS Tikhonov, AD Mirlin - Physical Review B, 2019 - APS
Dynamical and spatial correlations of eigenfunctions as well as energy level correlations in
the Anderson model on random regular graphs (RRG) are studied. We consider the critical …

Finite-size scaling and multifractality at the Anderson transition for the three Wigner-Dyson symmetry classes in three dimensions

L Ujfalusi, I Varga - Physical Review B, 2015 - APS
The disorder-induced metal-insulator transition is investigated in a three-dimensional simple
cubic lattice and compared for the presence and absence of time-reversal and spin …

Chaos and ergodicity across the energy spectrum of interacting bosons

L Pausch, EG Carnio, A Rodríguez, A Buchleitner - Physical Review Letters, 2021 - APS
We identify the chaotic phase of the Bose-Hubbard Hamiltonian by the energy-resolved
correlation between spectral features and structural changes of the associated eigenstates …