3.1k citations · 8.6k across the 32 of their papers we have counts for
3 papers · 1 filter
Purification of Noisy Entanglement and Faithful Teleportation via Noisy Channels
Charles H. Bennett, Gilles Brassard, Sandu Popescu +3
Two separated observers, by applying local operations to a supply of not-too-impure entangled states ({\em e.g.} singlets shared through a noisy channel), can prepare a smaller num…
Concentrating Partial Entanglement by Local Operations
Charles H. Bennett, Herbert J. Bernstein, Sandu Popescu +1
If two separated observers are supplied with entanglement, in the form of pairs of particles in identical partly-entangled pure states, one member of each pair being given to e…
Noncommuting mixed states cannot be broadcast
H. Barnum, C. M. Caves, C. A. Fuchs +2
We show that, given a general mixed state for a quantum system, there are no physical means for {\it broadcasting\/} that state onto two separate quantum systems, even when the sta…