Scaling silicon quantum photonic technology

Physorg  March 9, 2018
An international team of researchers (UK, China, Denmark, Germany, Poland, Spain) has demonstrated a programmable path-encoded multidimensional entangled system with dimension up to 15×15, where two photons exist over 15 optical paths at the same time and are entangled with each other. This multidimensional entanglement is realised by exploiting silicon-photonics quantum circuits, integrating in a single chip, 550 optical components, including 16 identical photon-pair sources, 93 optical phase-shifters, 122 beam-splitters. The research provides a clear path to scaling up to the many millions of components that are ultimately needed for large-scale quantum computing applications… read more. TECHNICAL ARTICLE