Journal
PHYSICAL REVIEW LETTERS
Volume 96, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.96.060502
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We present an explicit protocol E-0 for faithfully teleporting an arbitrary two-qubit state via a genuine four-qubit entangled state. By construction, our four-partite state is not reducible to a pair of Bell states. Its properties are compared and contrasted with those of the four-party Greenberger-Horne-Zeilinger and W states. We also give a dense coding scheme D-0 involving our state as a shared resource of entanglement. Both D-0 and E-0 indicate that our four-qubit state is a likely candidate for the genuine four-partite analogue to a Bell state.
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