"Spin-photon entanglement of a single Yb-171 atom in the telecom band"
Abstract: Long-distance quantum networking brings us the infrastructure for secure communication, distributed
quantum computing and an entangled quantum sensor network. The neutral Yb-171 atom is a great candidate for both quantum computing and quantum repeaters since its level structure provides high fidelity quantum memories, gate operations, measurements and strong coupling to the telecom wavelength photon. In this talk I will introduce our recent work generating the atom photon entanglement of the Yb-171 at 1389 nm (fibre loss coefficient < 0.3 dB/km). We demonstrate the high-fidelity time-bin encoded spin photon entanglement and measurements using an unbalanced Mach-Zehnder interferometer, which is the key component for building quantum repeaters.
Bio: Lintao Li is a postdoc working on the YbI tweezer experiment in the Covey Lab. His research interest is the quantum metrology using Ytterbium tweezers. He is a graduate of the Chinese University of Hong Kong and his PhD research in Dajun Wang's group is about the behavior of the ultracold Bose-Bose mixture.