Successfully implementing a quantum repeater would require an entanglement generation rate higher than the memory decoherence rate, but current implementations with atomic memories are still far from this goal. Here, the authors narrow this gap by exploiting spatial and time-bin multiplexing in an atomic DLCZ memory, and sending the frequency-converted signal photon through 12 km of telecom fiber.
- Sheng Zhang
- Jixuan Shi
- Yunfei Pu
