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BBOI results published in Nature Communications

 7 August 2015   
Qubit entanglement between ring-resonator photon-pair sources on a silicon chip   
The BBOI teams from the Centre for Quantum Photonics of the University of Bristol and from the University of Glasgow have demonstr
ated a silicon photonic chip that uses resonant-enhanced photon-pair sources, spectral demultiplexers and reconfigurable optics to generate a path-entangled two-qubit state.
Quantum state tomography and the strict Bell-CHSH test are performed that confirm a high level of on-chip entanglement.
This work demonstrates the integration of high-performance components for quantum integrated devices and systems to harness photonic entanglement on the large scale.

Read more:
J. W. Silverstone,  R. Santagati, D. Bonneau, M. J. Strain, M. Sorel, J. L. O’Brien, and M. G. Thompson, "Qubit entanglement between ring-resonator photon-pair sources on a silicon chip," Nature Communications  6:7948, Aug. 2015.


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