All entangled states are useful for information processing

Details All entangled states are useful for information processing All entangled states are useful for information processing

2005-08-09

arxiv.org/abs/quant-ph/0508071v3

Phys. Rev. Lett. 96, 150501 (2006).

Physics

Quantum Physics

4 pages

Scientific paper

10.1103/PhysRevLett.96.150501

The question whether all entangled states can be used as a nonclassical
resource has remained open so far. Here we provide a conclusive answer to this
problem for the case of systems shared by two parties. We show that any
entangled state $\sigma$ can enhance the teleportation power of some other
state. This holds even if the state $\sigma$ is bound entangled.

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