315 citations · 913 across the 13 of their papers we have counts for
13 papers
Zeno-clocking the Auger decay
Emil Viñas Boström, Mathieu Gisselbrecht, Tomas Brage +3
A tenet of time-resolved spectroscopy is -faster laser pulses for shorter timescales- . Here we suggest turning this paradigm around, and slow down the system dynamics via repeated…
Nonequilibrium Green's functions and atom-surface dynamics: Simple views from a simple model system
E. Boström, M. Hopjan, A. Kartsev +2
We employ Non-equilibrium Green's functions (NEGF) to describe the real-time dynamics of an adsorbate-surface model system exposed to ultrafast laser pulses. For a finite number of…
Merging Features from Green's Functions and Time Dependent Density Functional Theory: A Route to the Description of Correlated Materials out of Equilibrium?
M. Hopjan, D. Karlsson, S. Ydman +2
We propose a description of nonequilibrium systems via a simple protocol that combines exchange-correlation potentials from density functional theory with self-energies of many-bod…
Some open questions in TDDFT: Clues from Lattice Models and Kadanoff-Baym Dynamics
Claudio Verdozzi, Daniel Karlsson, Marc Puig von Friesen +2
Two aspects of TDDFT, the linear response approach and the adiabatic local density approximation, are examined from the perspective of lattice models. To this end, we review the DF…
Kadanoff-Baym equations and approximate double occupancy in a Hubbard dimer
M. Puig von Friesen, C. Verdozzi, C. -O. Almbladh
We use the Kadanoff-Baym equations within the framework of many-body perturbation theory to study the double occupancies in a Hubbard dimer. The double occupancies are obtained fro…
Kadanoff-Baym description of Hubbard clusters out of equilibrium: performance of many-body schemes, correlation-induced damping and multiple steady states
M. Puig von Friesen, C. Verdozzi, C. -O. Almbladh
We present in detail a method we recently introduced (PRL. 103, 176404 (2009)) to describe finite systems in and out of equilibrium, where the evolution in time is performed via th…