Objetivo We will explore the possibility of building scalable quantum information processors using novel ideas of linear quantum logic. This will include probabilistic CNOT gates assembled from single photon sources and sources of entangled states. We will also investigate the development of higher dimensional quantum logic aimed at developing error resilient quantum networks. Supporting work will develop logic realisations. A theoretical effort will aim to increase the efficiency of simple gate and look at scalability, error correction and the overall limits to this technology. We will explore the possibility of building scalable quantum information processors using novel ideas of linear quantum logic. This will include probabilistic CNOT gates assembled from single photon sources and sources of entangled states. We will also investigate the development of higher dimensional quantum logic aimed at developing error resilient quantum networks. Supporting work will develop logic realisations. A theoretical effort will aim to increase the efficiency of simple gate and look at scalability, error correction and the overall limits to this technology.OBJECTIVESUltimately RAMBOQ seeks to develop the technologies supporting elementary scalable quantum processors and robust optical links between separated quantum processors. It aims to do this by developing on novel schemes for efficient quantum computation using conditional linear logic.Studying the theoretical limits to conditional linear logic we will reduce gate complexity and increase efficiency. Experimentally we will demonstrate efficient creation of single photon input states, single mode entangled states and efficient readout detectors. Starting from a single gate our ultimate goal will be to demonstrate scalability through a cascaded (few gate) quantum logic circuit. We would also like to demonstrate applications of logic in novel quantum communication schemes: sharing and teleportation of quantum states for quantum networking, distributed quantum processing and other quantum communication protocols. Finally we will investigate novel logic schemes using higher order states for multi-party quantum protocols.DESCRIPTION OF WORKThe project is arranged into six work parts:WP0 Management and dissemination of results.WP1 Theory of linear quantum logic.WP2 Input-output: single photon sources and detectors.WP3 Implementation of quantum logic.WP4 Tools for Quantum Networks. Higher dimensional Hilbert space.WP6 Applications. We will develop simplified logic gates in WP1 and feed these designs to WP3, WP4 and WP6.WP2 will develop time bandwidth limited single photon sources suitable for logic and demonstrate the fundamental interference effects required.Similar developments on entangled pair sources will be carried out in WP3 and an eventual experiment will demonstrate a scalable gate combining entangled state and single photon sources. Such gates will show low errors arising from interference only but may suffer from low efficiency. We will directly address this low efficiency with novel designs for single photon sources and detectors WP2 and with novel gate design WP1/3. The simple gates developed will be directly applied to novel quantum network ideas to show novel quantum states and use also investigate higher order encoding using higher order quantum states and use such states for emerging multiparty communication proptocoles WP5. Output from the programme leading to nearer term applications will be analysed in WP6. Ámbito científico natural sciencesmathematicspure mathematicsalgebralinear algebranatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Programa(s) FP5-IST - Programme for research, technological development and demonstration on a "User-friendly information society, 1998-2002" Tema(s) IST-2002-6.2.1 - Quantum Information Processing and Communication (QIPC) Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador UNIVERSITY OF BRISTOL Aportación de la UE Sin datos Dirección SENATE HOUSE, TYNDALL AVENUE BS8 1TH BRISTOL Reino Unido Ver en el mapa Coste total Sin datos Participantes (12) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo FRIEDRICH-ALEXANDER UNIVERSITAET ERLANGEN - NUERNBERG Alemania Aportación de la UE Sin datos Dirección SCHLOSSPLATZ 4 91054 ERLANGEN Ver en el mapa Coste total Sin datos HEWLETT-PACKARD LIMITED Reino Unido Aportación de la UE Sin datos Dirección CAIN ROAD RG12 1HN BRACKNELL Ver en el mapa Coste total Sin datos ID QUANTIQUE SA Suiza Aportación de la UE Sin datos Dirección RUE CINGRIA 10, C/ GREGOIRE RIBORDY 1205 GENEVE Ver en el mapa Coste total Sin datos ISTITUTO NAZIONALE PER LA FISICA DELLA MATERIA Italia Aportación de la UE Sin datos Dirección CORSO F. PERRONE 24 16152 GENOVA Ver en el mapa Coste total Sin datos LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHEN Alemania Aportación de la UE Sin datos Dirección GESCHWISTER-SCHOLL-PLATZ 1 80539 MUENCHEN Ver en el mapa Coste total Sin datos THALES Francia Aportación de la UE Sin datos Dirección 45 Rue De Villiers 92200 Neuilly Sur Seine Ver en el mapa Coste total Sin datos THE CHANCELLOR, MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE Reino Unido Aportación de la UE Sin datos Dirección THE OLD SCHOOLS, TRINITY LANE CB2 1TN CAMBRIDGE Ver en el mapa Coste total Sin datos THE UNIVERSITY OF QUEENSLAND Australia Aportación de la UE Sin datos Dirección QLD4072 BRISBANE, QUEENSLAND Ver en el mapa Coste total Sin datos TOSHIBA RESEARCH EUROPE LIMITED Reino Unido Aportación de la UE Sin datos Dirección 260 CAMBRIDGE SCIENCE PARK, MILTON ROAD CB4 0WE CAMBRIDGE Ver en el mapa Coste total Sin datos UNIVERSITAET WIEN - INSTITUT FUER EXPERIMENTALPHYSIK Austria Aportación de la UE Sin datos Dirección BOLTZMANNGASSE 5 1090 WIEN Ver en el mapa Coste total Sin datos UNIVERSITE DE GENEVE Suiza Aportación de la UE Sin datos Dirección RUE DU GENERAL DUFOUR 24 1211 GENEVE 4 Ver en el mapa Coste total Sin datos UNIVERSITE PARIS 7 DENIS DIDEROT Francia Aportación de la UE Sin datos Dirección PLACE JUSSIEU 2 75251 PARIS CEDEX 05 Ver en el mapa Coste total Sin datos
