High Fidelity Single Qubit Operations using Pulsed EPR

Preprint

18 February 2005

preprint
Published by arXiv in arXiv

Abstract

The fidelity of quantum logic operations performed on electron spin qubits using simple RF pulses falls well below the threshold for the application of quantum algorithms. Using three independent techniques, we demonstrate the use of composite pulses to improve this fidelity by several orders of magnitude. The observed high-fidelity operations are limited by pulse phase errors, but nevertheless fall within the limits required for the application of quantum error correction algorithms.

Keywords

QUBIT OPERATIONS
FIDELITY SINGLE
ELECTRON SPIN
HIGH FIDELITY
SINGLE QUBIT
PHASE ERRORS
ALGORITHMS
PULSED EPR

All Related Versions

Version 1, 2005-02-18, ArXiv
Version 2, 2005-02-24, ArXiv
Version 3, 2005-10-10, ArXiv
Published version: Physical Review Letters, 95 (20), 200501.

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