Witness for an entangled state with positive partial transpose

Details Witness for an entangled state with positive partial transpose Witness for an entangled state with positive partial transpose

2009-03-13

arxiv.org/abs/0903.2320v2

Physics

Quantum Physics

The paper is withdrawn after noticing some errors

Scientific paper

In this letter we have analyzed an entangled state in $C^{3} \bigotimes
C^{3}$ having a positive partial transposition and have shown that it is an
edge state. Further we have constructed explicitly a witness operator $W$ which
detects the entanglement.

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