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Details of Grant 

EPSRC Reference: EP/J00815X/1
Title: The Solid State Quantum Network
Principal Investigator: Rudolph, Professor TG
Other Investigators:
Barrett, Dr S D
Researcher Co-Investigators:
Project Partners:
Department: Physics
Organisation: Imperial College London
Scheme: Standard Research
Starts: 01 October 2011 Ends: 30 September 2014 Value (£): 188,894
EPSRC Research Topic Classifications:
Electronic Devices & Subsys. Optoelect. Devices & Circuits
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
Quantum communication, the transfer of quantum superposition states over long

distances, is presently limited to about 200km (both in optical fibre and free space) due to

unavoidable photon absorption losses. This research aims to extend this

distance using "entanglement swapping" and "teleportation". By

concatenating short entanglement swapping sub-sections it is in principle possible to

generate entangled (correlated) bits over very long distances with bit rate only limited by the

losses in one short section. If realised this would extend quantum communication

applications such as quantum cryptography and quantum teleportation out to distances of

thousands of kilometres.

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Further Information:  
Organisation Website: http://www.imperial.ac.uk