@article {27834, title = {Universal and operational benchmarking of quantum memories}, journal = {npj Quantum Information}, volume = {7}, year = {2021}, pages = {1-8}, publisher = {Nature Publishing Group}, isbn = {2056-6387}, author = {Yuan, Xiao and Liu, Yunchao and Zhao, Qi and Regula, Bartosz and Thompson, Jayne and Gu, Mile} }