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Two-qbit gates based on coupled quantum wires

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7 Author(s)
Reggiani, S. ; Dipartimento di Elettronica, Bologna Univ., Italy ; Bertoni, A. ; Bordone, P. ; Brunetti, R.
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A solid-state implementation of a set of one- and two-qbit gates for quantum computing is proposed. The qbit is defined as the state of an electron running along two quantum wires, suitably coupled through a potential barrier with variable height and/or width. Single-qbit gates are implemented using the coupling between the two wires. The two-qbit gates have been designed using a Coulomb coupler to induce a mutual phase modulation of the two qbits. A number of runs have been performed using a time-dependent 2D Schrodinger solver

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Simulation of Semiconductor Processes and Devices, 2000. SISPAD 2000. 2000 International Conference on

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