In this work we present a simulation of the coherent evolution of electrons in two coupled quantum wires assisted by surface acoustic waves. The system under study has recently been proposed as a model for a solid-state realization of quantum gates. A quantum NOT transformation and an electron beam splitter have been numerically simulated. Results show that the surface acoustic waves improve the functionality of the device by preventing the spreading of the electron wavefunction and reducing undesired reflection effects.
Coherent transport in coupled quantum wires assisted by surface acoustic waves / Bordone, Paolo; A., Bertoni; M., Rosini; S., Reggiani; Jacoboni, Carlo. - In: SEMICONDUCTOR SCIENCE AND TECHNOLOGY. - ISSN 0268-1242. - STAMPA. - 19:4(2004), pp. S412-S414. [10.1088/0268-1242/19/4/135]
Coherent transport in coupled quantum wires assisted by surface acoustic waves
BORDONE, Paolo;JACOBONI, Carlo
2004
Abstract
In this work we present a simulation of the coherent evolution of electrons in two coupled quantum wires assisted by surface acoustic waves. The system under study has recently been proposed as a model for a solid-state realization of quantum gates. A quantum NOT transformation and an electron beam splitter have been numerically simulated. Results show that the surface acoustic waves improve the functionality of the device by preventing the spreading of the electron wavefunction and reducing undesired reflection effects.
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