Objectif A system of neutral atoms stored in an optical lattice is a promising candidate for implementing scalable quantum computing. A quantum phase transition can be used to prepare exactly one atom per lattice site, where each atom can be considered as quantum bit. Based on the so-called Mott-Insulator state several schemes for quantum computation have been proposed, including proposals for the creation of entanglement, computation with cluster states and quantum simulations. It is planned to use a Mott insulator as a quantum register, in which one can encode qu-bits in the single atoms on each lattice site and quantum gates can be implemented acting on different atoms of the lattice.Crucial advantages are: the simple quantum-level structures of atoms; the insulation from the environment which leads to a strong suppression of decoherence, and the ability to trap and act on a very large ensemble of identical atoms. An impressive example of the flexibility is the use of the internal degrees of freedom of the neutral atoms in order to generate the quantum entanglement essential of many quantum information protocols. To generate entanglement, one requires an experimental system that can be prepared in a pure atomic state, with significant and coherently controlled interactions between the particles composing the pure state. Bose-Einstein condensates fulfil these requirements.The goal is to make quantum processing viable by using neutral atoms trapped in optical lattices. We will focus on different challenges: preparation and initialisation of a quantum register; addressing, manipulating and measuring on single sites; two-bit gates and compatible stable qubits; generation and characterisation of multi-particle entanglement states; strategies for minimising decoherence; quantum simulator; new theoretical strategies for quantum computers with optical lattices. The final objectives of the project will provide a persistent and long-term commitment to emerging applications. Champ scientifique engineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computersnatural sciencesphysical sciencescondensed matter physicsbose-einstein condensates Programme(s) FP6-IST - Information Society Technologies: thematic priority under the specific programme "Integrating and strengthening the European research area" (2002-2006). Thème(s) IST-2002-2.3.4.1 - FET - Open Appel à propositions Data not available Régime de financement STREP - Specific Targeted Research Project Coordinateur CONSIGLIO NAZIONALE DELLE RICERCHE Contribution de l’UE Aucune donnée Adresse Italie Voir sur la carte Liens Site web Opens in new window Coût total Aucune donnée Participants (4) Trier par ordre alphabétique Trier par contribution de l’UE Tout développer Tout réduire EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH Suisse Contribution de l’UE Aucune donnée Adresse R?STRASSE 101 CH-8092 ZUERICH Voir sur la carte Coût total Aucune donnée JOHANNES GUTENBERG-UNIVERSITAET MAINZ Allemagne Contribution de l’UE Aucune donnée Adresse SAARSTRASSE 21 55099 MAINZ Voir sur la carte Coût total Aucune donnée THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORD Royaume-Uni Contribution de l’UE Aucune donnée Adresse UNIVERSITY OFFICES, WELLINGTON SQUARE OX1 2JD OXFORD Voir sur la carte Coût total Aucune donnée UNIVERSIT?INNSBRUCK Autriche Contribution de l’UE Aucune donnée Adresse INNRAIN 52 6020 INNSBRUCK Voir sur la carte Coût total Aucune donnée