Quantum Computation with Ballistic Electrons

Abstract

We describe a solid state implementation of a quantum computer using ballistic single electrons as flying qubits in 1D nanowires. We show how to implement all the steps required for universal quantum computation: preparation of the initial state, measurement of the final state and a universal set of quantum gates. An important advantage of this model is the fact that we do not need ultrafast optoelectronics for gate operations. We use cold programming (or pre-programming), i.e., the gates are set before launching the electrons; all programming can be done using static electric fields only.

5 pages, RevTeX4, 5 figures, uses epsf, latexsym, times

References in corpus (2)

• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Quantum Computation with Quantum Dots and Terahertz Cavity Quantum Electrodynamics

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