Obiettivo In quantum nanoelectronics, one of the paradigms is to use quantum mechanics in order to build more efficient nanoprocessors. In this context, the electron spin has been identified as a good degree of freedom to store and to manipulate quantum information efficiently. The defined building block of this quantum computer strategy is called a spin qubit. Towards this goal, intense experimental efforts have been invested in AlGaAs heterostructures where quantum dots with only one electron can be realized. In such a system, all the basic operations of a quantum nanoprocessor have been demonstrated in spin qubits and they constitute a very promising platform to study spin dynamics at the single electron level.To scale up the spin qubit system, one has to be able to make two distant qubits interacting. The protocol consists in the exchange of a quantum particle between the two qubits. In this respect, one can take advantage of the fact that a single electron can be transported within nanostructures. Understanding how to preserve quantum information stored in the spin of an electron while transferring it between two quantum dot systems is of crucial importance. Recently, the PI has realized a first important step towards this goal, namely the realization of efficient single electron transfer between two distant quantum dots on a timescale faster than the spin decoherence timeHere we propose to give a new dimension to the spin qubit system by investigating quantum coherence and manipulation of a single flying electron spin. Displacing coherently a single electron spin between two distant quantum dots not only represents a viable solution towards entanglement between distant qubits but also opens new ways of manipulating coherently electron spins via spin-orbit interaction. The new knowledge expected from these experiments is likely to have a broad impact extending from quantum spintronics to other areas of nanoelectronics. Campo scientifico natural sciencesphysical sciencesquantum physicsnatural sciencesphysical scienceselectromagnetism and electronicsspintronicsengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringcomputer hardwarequantum computersengineering and technologynanotechnologynanoelectronics Programma(i) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Argomento(i) ERC-SG-PE3 - ERC Starting Grant - Condensed matter physics Invito a presentare proposte ERC-2012-StG_20111012 Vedi altri progetti per questo bando Meccanismo di finanziamento ERC-SG - ERC Starting Grant Istituzione ospitante CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Contributo UE € 1 500 000,00 Indirizzo RUE MICHEL ANGE 3 75794 Paris Francia Mostra sulla mappa Regione Ile-de-France Ile-de-France Paris Tipo di attività Research Organisations Contatto amministrativo Guillaume Rochet (Mr.) Ricercatore principale Tristan Aurélien Yan Meunier (Dr.) Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Costo totale Nessun dato Beneficiari (1) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Francia Contributo UE € 1 500 000,00 Indirizzo RUE MICHEL ANGE 3 75794 Paris Mostra sulla mappa Regione Ile-de-France Ile-de-France Paris Tipo di attività Research Organisations Contatto amministrativo Guillaume Rochet (Mr.) Ricercatore principale Tristan Aurélien Yan Meunier (Dr.) Collegamenti Contatta l’organizzazione Opens in new window Sito web Opens in new window Costo totale Nessun dato