Équipe de Recherche en Physique de l'Information Quantique


author = {M Pioro-Ladriere and Y Tokura and T Obata and T Kubo and S Tarucha},
journal = {Appl Phys Lett},
title = {Micromagnets for coherent control of spin-charge qubit in lateral quantum dots},
abstract = {A lateral quantum dot design for coherent electrical manipulation of a two-level spin-charge system is presented. Two micron-size permanent magnets integrated to high-frequency electrodes produce a static slanting magnetic field suitable for voltage controlled single qubit gate operations. Stray field deviation from the slanting form is taken into account in the Hamiltonian describing the two-level system, which involves hybridization of a single electron spin to the quantum dot's orbitals. Operation speed and gate fidelity are related to device parameters. Sub-100-ns pi pulse duration can be achieved with lattice fluctuation coherence time of 4 ms for GaAs. (c) 2007 American Institute of Physics.},
affiliation = {Japan Sci {\&} Technol Agcy, ICORP, Quantum Spin Informat Project, Atsugi, Kanagawa 2430198, Japan},
number = {2},
pages = {024105},
volume = {90},
year = {2007},
month = {Jan},
language = {English},
keywords = {Computation, Manipulation, Single-Electron Spin},
date-added = {2010-05-14 10:36:59 -0400},
date-modified = {2010-05-14 10:36:59 -0400},
doi = {10.1063/1.2430906},
pmid = {000243582000102},
uri = {papers://2218479D-7AA1-43D5-8E9E-4EF38C7D1379/Paper/p722},
rating = {0}