activity
20182026
most citedComparing the generalized Kadanoff-Baym ansatz with the full Kadanoff-Baym equations for an excitonic insulator out of equilibrium

49 citations · 99 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.str-el2026

NESSi 2.0: The Non-Equilibrium Systems Simulation package version 2.0

Fabian Künzel, Michael Schüler, Denis Golež +7

Nonequilibrium Green's functions provide a powerful framework for studying quantum many-body dynamics including the laser-induced dynamics in solids. The Non-Equilibrium Systems Si…

cond-mat.str-el2025

2D coherent spectroscopy signatures of exciton condensation in TaNiSe

Jiyu Chen, Jernej Mravlje, Denis Golež +1

We show that the nonlinear optical response probed by two-dimensional coherent spectroscopy (2DCS) can discriminate between excitonic and lattice driven order. In the excitonic reg…

cond-mat.str-el2025★ 1 cited

Doublon-Holon Pairing State in Photodoped Mott Insulators

Ryota Ueda, Madhumita Sarkar, Zala Lenarčič +3

We demonstrate the existence of an unconventional pairing state in photodoped Mott insulators on ladder and quasi-two-dimensional geometries, characterized by quasi-long-range doub…

cond-mat.mtrl-sci2025

Driving collective current excitations using light: The two-time approach

Chin Shen Ong, Denis Golež, Angel Rubio +2

We identify a distinct transverse collective excitation, which we name the "curron", arising from current-current interactions in a driven quantum metal. Unlike plasmons, which inv…

cond-mat.str-el2024

Anomalous photo-induced band renormalization in correlated materials: Case study of TaNiSe

Lei Geng, Xiulan Liu, Jianing Zhang +2

We investigate the anomalous photo-induced band renormalization in correlated materials, exemplified by the case of TaNiSe. The manifestation of this anomaly is characteriz…

cond-mat.str-el2023★ 27 cited

Photo-induced nonequilibrium states in Mott insulators

Yuta Murakami, Denis Golež, Martin Eckstein +1

The study of nonequilibrium phenomena in interacting lattice systems can provide new perspectives on correlation effects, and information on metastable states of matter. Mott insul…

cond-mat.str-el2020★ 49 cited

Comparing the generalized Kadanoff-Baym ansatz with the full Kadanoff-Baym equations for an excitonic insulator out of equilibrium

Riku Tuovinen, Denis Golež, Martin Eckstein +1

We investigate out-of-equilibrium dynamics in an excitonic insulator (EI) with a finite momentum pairing perturbed by a laser-pulse excitation and a sudden coupling to fermionic ba…

cond-mat.str-el2018★ 22 cited

Adiabatic Preparation of a Correlated Symmetry-Broken Initial State with the Generalized Kadanoff--Baym Ansatz

Riku Tuovinen, Denis Golež, Michael Schüler +3

A fast time propagation method for nonequilibrium Green's functions based on the generalized Kadanoff--Baym Ansatz (GKBA) is applied to a lattice system with a symmetry-broken equi…