most citedDiagrammatic Expansion for Positive Spectral Functions in the Steady-State Limit

2 citations · 2 across the 1 of their papers we have counts for

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3 papers

cond-mat.stat-mech2019★ 2 cited

Diagrammatic Expansion for Positive Spectral Functions in the Steady-State Limit

Markku J. Hyrkäs, Daniel Karlsson, Robert van Leeuwen

Recently, a method was presented for constructing self-energies within many-body perturbation theory that are guaranteed to produce a positive spectral function for equilibrium sys…

cond-mat.mes-hall2016

Phononic heat transport in the transient regime: An analytic solution

Riku Tuovinen, Niko Säkkinen, Daniel Karlsson +2

We investigate the time-resolved quantum transport properties of phonons in arbitrary harmonic systems connected to phonon baths at different temperatures. We obtain a closed analy…

cond-mat.mes-hall2016

Effective bias and potentials in steady-state quantum transport: A NEGF reverse-engineering study

Daniel Karlsson, Claudio Verdozzi

Using non-equilibrium Green's functions combined with many-body perturbation theory, we have calculated steady-state densities and currents through short interacting chains subject…