Quantum Computation with Quantum Dots

Preprint

20 July 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9701055

Abstract

We propose a new implementation of a universal set of one- and two-qubit gates for quantum computation using the spin states of coupled single-electron quantum dots. Desired operations are effected by the gating of the tunneling barrier between neighboring dots. Several measures of the gate quality are computed within a newly derived spin master equation incorporating decoherence caused by a prototypical magnetic environment. Dot-array experiments which would provide an initial demonstration of the desired non-equilibrium spin dynamics are proposed.

Keywords

MAGNETIC ENVIRONMENT
QUANTUM COMPUTATION
DECOHERENCE CAUSED
UNIVERSAL SET
QUANTUM DOTS
DOT ARRAY
SPIN

All Related Versions

Version 1, 1997-01-09, ArXiv
Version 2, 1997-05-14, ArXiv
Version 3, 1997-07-20, ArXiv
Published version: Physical Review A, 57 (1), 120.

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