Peter W. Shor, John A. Smolin, et al.
Physical Review Letters
Asymptotically entangled states which exist from which no pure entanglement can be distilled were shown. Moreover, a surprising fact that distillable entanglement was not additive by showing two undistillable asymptotically entangled states that when combined give a distillable state was shown as well. This paper presents a four-party example of a state that was asymptotically entangled but not distillable.
Peter W. Shor, John A. Smolin, et al.
Physical Review Letters
Jerry M. Chow, Jay M. Gambetta, et al.
Physical Review Letters
Graeme Smith, John A. Smolin, et al.
Nature Photonics
Dagmar Bruß, David P. DiVincenzo, et al.
Physical Review A - AMO