105 citations · 1.9k across the 97 of their papers we have counts for
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Time-dependent transport in graphene nanoribbons
E. Perfetto, G. Stefanucci, M. Cini
We theoretically investigate the time-dependent ballistic transport in metallic graphene nanoribbons after the sudden switch-on of a bias voltage . The ribbon is divided in thre…
Equilibrium and time-dependent Josephson current in one-dimensional superconducting junctions
Enrico Perfetto, Gianluca Stefanucci, Michele Cini
We investigate the transport properties of a one-dimensional superconductor-normal metal-superconductor (S-N-S) system described within the tight-binding approximation. We compute…
Time-dependent quantum transport with superconducting leads: a discrete basis Kohn-Sham formulation and propagation scheme
Gianluca Stefanucci, Enrico Perfetto, Michele Cini
In this work we put forward an exact one-particle framework to study nano-scale Josephson junctions out of equilibrium and propose a propagation scheme to calculate the time-depend…
Bouncing transient currents and SQUID-like voltage in nano devices at half filling
Michele Cini, Enrico Perfetto, Chiara Ciccarelli +2
Nanorings asymmetrically connected to wires show different kinds of quantum interference phenomena under sudden excitations and in steady current conditions. Here we contrast the t…
Circulating currents and magnetic moments in quantum rings
Michele Cini, Enrico Perfetto, Gianluca Stefanucci
In circuits containing closed loops the operator for the current is determined by charge conservation up to an arbitrary divergenceless current. In this work we propose a formula t…
Generalized waveguide approach to tight-binding wires: Understanding large vortex currents in quantum rings
Gianluca Stefanucci, Enrico Perfetto, Stefano Bellucci +1
We generalize the quantum waveguide approach to Hückel or tight-binding models relevant to unsaturated $\p$ molecular devices. A Landauer-like formula for the current density throu…