Multi-partite squash operation and its application to device-independent quantum key distribution
Multi-partite squash operation and its application to device-independent quantum key distribution
The squash operation, or the squashing model, is a useful mathematical tool for proving the security of quantum key distribution systems using practical (i.e., non-ideal) detectors. At the present, however, this method can only be applied to a limited class of detectors, such as the threshold detector of the Bennett-Brassard …