Entanglement of three-qubit pure states in terms of teleportation capability

Details Entanglement of three-qubit pure states in terms of teleportation capability Entanglement of three-qubit pure states in terms of teleportation capability

2005-02-24

arxiv.org/abs/quant-ph/0502157v3

Phys. Rev. A 72, 024302 (2005)

Physics

Quantum Physics

4 pages, 1 figure, accepted for publication as a Brief Report in Physical Review A

Scientific paper

10.1103/PhysRevA.72.024302

We define an entanglement measure, called the partial tangle, which
represents the residual two-qubit entanglement of a three-qubit pure state. By
its explicit calculations for three-qubit pure states, we show that the partial
tangle is closely related to the faithfulness of a teleportation scheme over a
three-qubit pure state.

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