Extending the spin coherence lifetimes of ${}^{167}$Er${}^{3+}$$:$Y${}_2$SiO${}_5$ at subkelvin temperatures

Jian-Yin Huang, Pei-Yun Li, Zong-Quan Zhou +2

Er${}^{3+}$$:$Y${}_2$SiO${}_5$ is a material of particular interest due to its suitability for telecom-band quantum memories and quantum transducers interfacing optical communication wit…