Seth T. Merkel, Jay M. Gambetta, et al.
Physical Review A - AMO
An even stronger effect that bound entangled states can have is presented; states which are conjectured to be undistillable become distillable by adding positive partial transpose (PPT) bound entanglement. These conjectured bound entangled states are referred to as negative partial transpose (NPT) bound entangled states.
Seth T. Merkel, Jay M. Gambetta, et al.
Physical Review A - AMO
Adriano Barenco, Charles H. Bennett, et al.
Physical Review A
Graeme Smith, John A. Smolin, et al.
Nature Photonics
Stephanie Wehner, Christian Schaffner, et al.
Physical Review Letters