L. Lami and Giovannetti, V.,
“Entanglement–breaking indices”,
Journal of Mathematical Physics, vol. 56, no. 9, p. 092201, 2015.
L. Lami and Giovannetti, V.,
“Entanglement-saving channels”,
Journal of Mathematical Physics, vol. 57, no. 3, p. 032201, 2016.