Nonequilibrium dynamical mean-field theory and its applications

H Aoki, N Tsuji, M Eckstein, M Kollar, T Oka… - Reviews of Modern …, 2014 - APS
The study of nonequilibrium phenomena in correlated lattice systems has developed into
one of the most active and exciting branches of condensed matter physics. This research …

When superconductivity crosses over: From BCS to BEC

Q Chen, Z Wang, R Boyack, S Yang, K Levin - Reviews of Modern Physics, 2024 - APS
New developments in superconductivity, particularly through unexpected and often
surprising forms of superconducting materials, continue to excite the community and …

Nonthermal antiferromagnetic order and nonequilibrium criticality in the Hubbard model

N Tsuji, M Eckstein, P Werner - Physical review letters, 2013 - APS
We study dynamical phase transitions from antiferromagnetic to paramagnetic states driven
by an interaction quench in the fermionic Hubbard model using the nonequilibrium …

Superconductivity on a quasiperiodic lattice: Extended-to-localized crossover of Cooper pairs

S Sakai, N Takemori, A Koga, R Arita - Physical Review B, 2017 - APS
We study a possible superconductivity in quasiperiodic systems by portraying the issue
within the attractive Hubbard model on a Penrose lattice. Applying a real-space dynamical …

BCS-BEC crossover in the extended Falicov-Kimball model: Variational cluster approach

K Seki, R Eder, Y Ohta - Physical Review B—Condensed Matter and Materials …, 2011 - APS
We study the spontaneous symmetry breaking of the excitonic insulator state induced by the
Coulomb interaction U in the two-dimensional extended Falicov-Kimball model. Using the …

Nonthermal symmetry-broken states in the strongly interacting Hubbard model

P Werner, N Tsuji, M Eckstein - Physical Review B—Condensed Matter and …, 2012 - APS
We study the time evolution of the antiferromagnetic order parameter after interaction
quenches in the Hubbard model. Using the nonequilibrium dynamical mean-field formalism …

Ordered phases in the Holstein-Hubbard model: Interplay of strong Coulomb interaction and electron-phonon coupling

Y Murakami, P Werner, N Tsuji, H Aoki - Physical Review B—Condensed …, 2013 - APS
We study the Holstein-Hubbard model at half filling to explore ordered phases including
superconductivity (SC), antiferromagnetism (AF), and charge order (CO) in situations where …

Coexistence of -wave superconductivity and phase separation in the half-filled extended Hubbard model with attractive interactions

E Linnér, C Dutreix, S Biermann, EA Stepanov - Physical Review B, 2023 - APS
Understanding competing instabilities in systems with correlated fermions remains one of
the holy grails of modern condensed matter physics. Among the fermionic lattice models …

Local origin of the pseudogap in the attractive Hubbard model

R Peters, J Bauer - Physical Review B, 2015 - APS
We provide a fresh perspective on the pseudogap physics for attractive fermions as
described by the three-dimensional Hubbard model. The pseudogap in the single-particle …

Nonthermal melting of Néel order in the Hubbard model

K Balzer, FA Wolf, IP McCulloch, P Werner, M Eckstein - Physical Review X, 2015 - APS
We study the unitary time evolution of antiferromagnetic order in the Hubbard model after a
quench starting from the perfect Néel state. In this setup, which is well suited for experiments …