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In this work we investigate the spectral and transport properties of a singlecorrelated layer attached to two metallic leads, with particular focus on thelow-energy physics. A steady state current is driven across the layer byapplying a bias voltage between the leads. Extending previous work we introducea nonzero temperature in the leads, which enables us to study the influence ofquasiparticle excitations on the transport characteristics in detail. Eventhough the system is clearly three dimensional we obtain current-voltage curvesthat closely resemble those of single quantum dots. Furthermore, a splitting ofthe quasiparticle excitation with bias voltage is observed in the spectralfunction.

Quasiparticle excitations in steady state transport across a correlated layer