Solid-state quantum memory array as part of quantum RAM in light-based quantum computing

https://www.eurekalert.org/news-releases/1095924

"array of 10 quantum memories created using praseodymium-doped crystal cryostat cooled to 3 K, allocating 250 storage slots each storing photon with on-demand retrieval... stores ever more photons until large entangled quantum state formed, then quantum operations begin... advances quantum repeaters that switch to another memory cell if no success with original... future: fully exploit time-multiplexed quantum memory arrays by storing entanglement, increasing: efficiency, storage time, number of memory cells"