Photonic Cluster States from Diamond

Project Information

PHOCLUDI

Grant agreement ID: 628802

Project closed

Start date 1 March 2014

End date 29 February 2016

Funded under

• Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

Total cost € 179 137,20

EU contribution € 179 137,20

Coordinated by

TECHNISCHE UNIVERSITAET WIEN
Austria

Objective

The main objective of the proposed research project is to build a diamond-based single-photon source that is capable of emitting strings of entangled photons for resource-efficient photonic quantum computing. This addresses the main challenge of measurement-based quantum computing in realising scalable multi-photon quantum information processing. We will follow recent theoretical work to realise the generation of a string of single photons that are entangled as a cluster state – the generic resource for measurement-based quantum computing.

To achieve this ambitious goal we will push current technology far beyond state-of-the-art by obtaining high light-collection efficiency from and advanced quantum control of single-photon emitters based on nitrogen-vacancy centres in diamond. To date, these light sources have been only used for obtaining individual, un-entangled photons. This will break new ground for the efficient generation of entangled photons, and will make large regions of previously inaccessible quantum state space available for modern quantum technologies.

We will develop new theory to perform feasible quantum state tomography of the emitted light by using only passive optical elements. Furthermore, we will use new experimental methods for the implementation of quantum gates; the combination of fast electro-optical switches and high-efficiency superconducting detectors will enable adaptive measurements for error correction and deterministic quantum logic operations. The results of these experiments will be crucial in the development of scalable quantum computing in realistic scenarios, and open alternative perspectives for novel applications using quantum-enhanced information technology.

Fields of science

• engineering and technology › electrical engineering, electronic engineering, information engineering › electronic engineering › computer hardware › quantum computers
• natural sciences › physical sciences › electromagnetism and electronics › superconductivity
• natural sciences › physical sciences › theoretical physics › particle physics › photons

Programme(s)

• FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)

Topic(s)

• FP7-PEOPLE-2013-IEF - Marie-Curie Action: "Intra-European fellowships for career development"

Call for proposal

FP7-PEOPLE-2013-IEF
See other projects for this call

Funding Scheme

MC-IEF - Intra-European Fellowships (IEF)

Coordinator

TECHNISCHE UNIVERSITAET WIEN

Administrative Contact

Stephan Schneider (Dr.)

• EU contribution: € 179 137,20
• Address: KARLSPLATZ 13 ; 1040 Wien ; Austria
• Region: Ostösterreich › Wien › Wien
• Activity type: Higher or Secondary Education Establishments
• Total cost: No data