Bound entanglement provides convertibility of pure entangled states

Details Bound entanglement provides convertibility of pure entangled states Bound entanglement provides convertibility of pure entangled states

2004-03-02

arxiv.org/abs/quant-ph/0403016v4

Phys. Rev. Lett. 93, 190501 (2004)

Physics

Quantum Physics

6 pages, 2 figure. Results for multipartite settings were added

Scientific paper

10.1103/PhysRevLett.93.190501

I show that two distant parties can transform pure entangled states to arbitrary pure states by stochastic local operations and classical communication (SLOCC) at the single copy level, if they share bound entangled states. This is the effect of bound entanglement since this entanglement processing is impossible by SLOCC alone. Similar effect of bound entanglement occurs in three qubits where two incomparable entangled states of GHZ and W can be inter-converted. In general multipartite settings composed by $N$ distant parties, all $N$-partite pure entangled states are inter-convertible by SLOCC with the assistance of bound entangled states with positive partial transpose.

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