University of Cambridge/Toshiba Cambridge Research Laboratory
All Sessions by Z.‐H. Xiang
24 October
12:30
Network Integration of Quantum Dot Device and Entanglement in Cambridge Fiber Network
12:30 - 12:50
Zi-Heng Xiang, Jan Huwer, Mark Stevenson, Joanna Skiba-Szymanska, Martin B. Ward, Ian Farrer, David Ritchie and Andrew Shields Semiconductor-based quantum dots (QDs) are considered to be one of the most important quantum emitters due to their single photon-emission property and integrability. However, the generated single photons from the QDs are not yet used for large-scale quantum communication systems. To explore such application, we transmit entangled photons from a telecom QD device over the Cambridge Fiber Network. A polarization stabilization system is operated for compensating fiber birefringence changes. High-fidelity (91.3%) entanglement is successfully maintained under field environment over one week of continuous operation, indicating great potential and reliability of QD emitters for application in quantum networks.
