Multiplexing entanglement in a two-mode quantum network, each mode containing multiple qubits, boosting communication rates

https://www.eurekalert.org/news-releases/1074945

"preparing qubits/ transmitting photons simultaneously, entanglement rate scaled proportionally to number of qubits... embedding ytterbium atoms inside yttrium orthovanadate crystals, laser exciting each atom to emit photon that remains entangled/ coupled to optical cavities... quantum feed-forward control: generates atoms entanglement  even when optical transitions differ, taking received information from the photon arrival time and applying  a quantum circuit: a series of logic gates that are tailored to the two qubits."