#1161Physics & AstronomyFront Page6 December 2025
Entangled in the City: A Quantum Leap for Urban Networks
Researchers have successfully entangled calcium ions with photons over a 12-kilometre optical fibre, achieving a critical milestone for the quantum internet. By employing a hybrid multiplexing technique, the system generates connections faster than the quantum memory decays.
By Cui, Wang, Lai, Wang, Shi, Liu, Sun, Tian, Liang, Qi, Huang, Zhou, Wu, Xu, Duan, Pu
