NanoEngineered Diamond for Quantum Information Technology (NEDQIT).

Lead Research Organisation: University of Bristol
Department Name: Electrical and Electronic Engineering


The primary long-term objective of this project is to place single atoms in nanostructured diamond to engineer scalable quantum logic elements. The ability to control the position of individual quantum systems is the fundamental key for the development single atom devices. In the case of quantum computing, precisecontrol of the internal quantum states is also required. We have identified promising impurity atoms in diamond that are optically active and have very long coherence times, even at room temperature. Optical technology for addressing individual atoms will be implemented for read-out of quantum information encoded in the spin of an individual atom. A secondary short-term objective is to develop efficient diamond-based single-photon sources for quantum communication. Finally, combining the technology of precise doping of single atoms with optical control has the potential to extend well beyond the standard paradigms of quantuminformation and spintronics.


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Description In this grant we developed the ability to study single colour centres (Nitrogen vacancy defects) in diamond and began to be able to resolve the spin in the ground state. This was enabled by a novel light collection strategy that we invented which involved focussed ion beam etching of hemispherical collection optics over single centres.
Exploitation Route Used extensively in my fellowship EP/M024458/1
Sectors Digital/Communication/Information Technologies (including Software),Electronics,Healthcare,Manufacturing, including Industrial Biotechology

Description CNRS - LIMHP 
Organisation University of Plymouth
Department Centre for Robotics and Neural Systems (CNRS)
Country United Kingdom 
Sector Academic/University 
Start Year 2007
Description ENS-Cachan 
Organisation École Normale Supérieure de Cachan
Country France 
Sector Academic/University 
Start Year 2007
Description Technion Israel Institue of Technology 
Organisation Technion - Israel Institute of Technology
Country Israel 
Sector Academic/University 
Start Year 2007
Description University of Stuttgart 
Organisation University of Stuttgart
Country Germany 
Sector Academic/University 
Start Year 2007