Andrea Bertoni

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In the last decades it has become clear that a rigorous quantum approach to electron transport in nano-device design is necessary, not only for the solution of problems where quantum effects are essential but also for testing the semiclassical approximation by comparison with exact quantum results obtained for the very same system. The Wigner-function(More)
We study by means of time-dependent numerical simulations the behavior of the entanglement stemming from the Coulomb scattering between two electrons subjected to a pulse of sinusoidal potential or trapped in the potential generated by surface acoustic waves. In the first case, we show how the entanglement formation depends upon the physical parameters(More)
We study by means of time-dependent numerical simulations the behavior of the entanglement stemming from the Coulomb scattering between two charged particles subject to a pulse of sinusoidal potential. We show that the splitting of the spatial wavefunction brought about by the interaction with the potential pulse plays a key role in the appearance of(More)
Surface acoustic waves (SAW) have proved to be a valuable mean to control single-electron dynamics in nano-devices. In this paper, we study the coherent propagation of electrons in quantum wires driven by SAW, as a part of a feasibility study on a coupled quantum wires device, able to realize the basic operations needed for quantum computing. Such a system(More)
We present a numerical analysis of the creation of entanglement between an electron freely propagating along a quantum wire and a charged particle bound to a specific site by a harmonic potential. The latter can be considered as a simplified model of an ionized impurity with an internal structure or of a localized phonon mode. Its dynamics is coupled to(More)
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