Ultralong-lived Coherent States in Eu${}^{3+}$:Y${}_2$O${}_3$ Optical Ceramics for Quantum Memories

Shuping Liu, Miaomiao Ren, Wanting Xiao +8

Rare earth ions (REI) in solid materials are among the leading systems for quantum technology applications. However, developing practical REI quantum devices with long-lived cohere…