Objetivo The key elements required for quantum information processing are:- Low error encoding of qubits onto individual quantum systems- Storage of quantum information for times long compared to gate times- Controllable two qubit interactions forming fast quantum gates.Our candidate systems are the paramagnetic colour centres in diamond. They offer at individual spin control and at room temperature very long coherence times compared to quantum gate processing times. The primary objective of this project is to use such defects in nanostructured diamond to implement scalable quantum logic gates, with the prospect of room temperature operation. Such elements rely on electron spin splitting of ground states in specific colour centres in diamond. Read-out of the single electron spin state can be achieved through optical detection of the colour centre strong photoluminescence, which is perfectly photostable even at room temperature.An order-of-magnitude improvement of the detection efficiency is therefore of crucial importance for achieving single shot read-out of the state of the addressed spin, and is one of the main objectives of the project. Coherent single photon wavepackets are also one of the building blocks for a photon-based quantum processor. Since individual colour centres in diamond have been shown as promising single photon source, temporal coherence of the emitted single photons will be investigated.The project involves 8 groups, all leading experts in the field of diamond material processing and application of diamond to quantum information. It strongly relies on recent developments in the synthesis and processing of high purity isotopically engineered intrinsic and doped single crystal diamond, the production and functionalization of diamond nanocrystals, and methods of controlled activation of defect centres suitable for quantum computing. Such developments will also benefit to diamond colour centre based single photon sources for quantum cryptography. Ámbito científico engineering and technologymaterials engineeringcolorsnatural sciencesphysical sciencesquantum physicsnatural sciencescomputer and information sciencescomputer securitycryptographyengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computersnatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Palabras clave Nanotechnology Programa(s) FP6-IST - Information Society Technologies: thematic priority under the specific programme "Integrating and strengthening the European research area" (2002-2006). Tema(s) 2.3.4.1 b9 - 2.3.4.1.b9 FET open Convocatoria de propuestas Data not available Régimen de financiación STREP - Specific Targeted Research Project Coordinador ECOLE NORMALE SUPERIEURE DE CACHAN Aportación de la UE Sin datos Dirección AVENUE DU PRESIDENT WILSON 61 94235 CACHAN Francia Ver en el mapa Coste total Sin datos Participantes (7) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo BI STEPANOV INSTITUTE OF PHYSICS OF Bielorrusia Aportación de la UE Sin datos Dirección NEZAVISIMOSTI AVE 68 220072 MINSK Ver en el mapa Coste total Sin datos CHRISTIAN-ALBRECHTS-UNIVERSITAET ZU KIEL Alemania Aportación de la UE Sin datos Dirección OLSHAUSENSTRASSE 40 KIEL Ver en el mapa Coste total Sin datos ELEMENT SIX LIMITED Reino Unido Aportación de la UE Sin datos Dirección KINGS RIDE PARK SL5 8BP ASCOT Ver en el mapa Coste total Sin datos THE UNIVERSITY OF MELBOURNE Australia Aportación de la UE Sin datos Dirección PARKVILLE OFFICE OF THE VICE CHANCELLOR 3010 MELBOURNE Ver en el mapa Coste total Sin datos THE UNIVERSITY OF WARWICK Reino Unido Aportación de la UE Sin datos Dirección UNIVERSITY HOUSE, KIRBY CORNER ROAD CV4 8UW COVENTRY Ver en el mapa Coste total Sin datos UNIVERSITAET STUTTGART Aportación de la UE Sin datos Dirección Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos UNIVERSITY OF BRISTOL Reino Unido Aportación de la UE Sin datos Dirección SENATE HOUSE, TYNDALL AVENUE BRISTOL Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos
