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-qubit 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 qubits. A number of runs have been perfomed using a time-dependent 2D Schroedinger solver.
TWO-QBIT GATES BASED ON COUPLED QUANTUM WIRES / S., R., A., B., Bordone, P., Brunetti, R., Jacoboni, C., M., R., G., B.. - STAMPA. - 1:(2000), pp. 184-187. (International Conference on Simulation of Semiconductor Processes and Devices Seattle, WA, USA, 2000) [10.1109/SISPAD.2000.871238].
TWO-QBIT GATES BASED ON COUPLED QUANTUM WIRES
BORDONE, Paolo;BRUNETTI, Rossella;JACOBONI, Carlo;
2000
Abstract
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-qubit 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 qubits. A number of runs have been perfomed using a time-dependent 2D Schroedinger solver.
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