The New Scientist article is talking about network of two entangled optical atomic clocks, which is a step beyond entanglement within one clock. Here's what Ox

The New Scientist article is talking about network of two entangled optical atomic clocks, which is a step beyond entanglement within one clock. Here's what Oxford's physics department says about it: https://www.physics.ox.ac.uk/news/quantum-network-entangled-atomic-clocks https://www.physics.ox.ac.uk/news/quantum-network-entangled-...