Dynamical mean-field theory of strongly correlated electron systems

D Vollhardt - Proceedings of the International Conference on …, 2020 - journals.jps.jp
Dynamical Mean-Field Theory (DMFT) has opened new perspectives for the investigation of
strongly correlated electron systems and greatly improved our understanding of correlation …

Impact of disorder and phonons on the Hubbard bands of Mott insulators in strong electric fields

TM Mazzocchi, D Werner, E Arrigoni - Physical Review B, 2024 - APS
We characterize the current-carrying nonequilibrium steady state (NESS) in a single-band
Hubbard model confronted with a static electric field in the presence of quenched disorder …

Nonequilibrium for correlated disordered systems

E Dohner, H Terletska, KM Tam, J Moreno, HF Fotso - Physical Review B, 2022 - APS
We present a solution for the nonequilibrium dynamics of an interacting disordered system.
The approach adapts the combination of the equilibrium dynamical mean-field theory and …

Charge density wave and superconductivity in the disordered Holstein model

B Xiao, NC Costa, E Khatami, GG Batrouni… - Physical Review B, 2021 - APS
The interplay between electron-electron correlations and disorder has been a central theme
of condensed matter physics over the past several decades, with particular interest in the …

Beyond quantum cluster theories: multiscale approaches for strongly correlated systems

HF Fotso, KM Tam, J Moreno - Quantum Science and …, 2022 - iopscience.iop.org
The degrees of freedom that confer to strongly correlated systems their many intriguing
properties also render them fairly intractable through typical perturbative treatments. For this …

Phonon localization in binary alloys with diagonal and off-diagonal disorder: A cluster Green's function approach

WR Mondal, T Berlijn, M Jarrell, NS Vidhyadhiraja - Physical Review B, 2019 - APS
We report the development and application of a method for carrying out computational
investigations of the effects of mass and force-constant (FC) disorder on phonon spectra …

Local density of states and scattering rates across the many-body localization transition

A Jana, VR Chandra, A Garg - Physical Review B, 2021 - APS
Characterizing the many-body localization (MBL) transition in strongly disordered and
interacting quantum systems is an important issue in the field of condensed matter physics …

Resolution of the exponent puzzle for the Anderson transition in doped semiconductors

EG Carnio, NDM Hine, RA Römer - Physical Review B, 2019 - APS
The Anderson metal-insulator transition (MIT) is central to our understanding of the quantum
mechanical nature of disordered materials. Despite extensive efforts by theory and …

Why calculate in infinite dimensions?

D Vollhardt - arXiv preprint arXiv:2210.06072, 2022 - arxiv.org
A pedagogical introduction to solving classical and quantum many-body models in infinite
spatial dimensions is given. The solution of the Hubbard model obtained in this limit is …

Neural network solver for small quantum clusters

N Walker, S Kellar, Y Zhang, KM Tam, J Moreno - Crystals, 2022 - mdpi.com
Machine learning approaches have recently been applied to the study of various problems
in physics. Most of these studies are focused on interpreting the data generated by …