2002/01/31 by Jinhyoung Lee, Hyegeun Min, Sung Dahm Oh · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.66.052318
published as Phys. Rev. A66, 052318 (2002) · slightly modified
arxiv created 2002/11/26 · arxiv updated 2009/12/01
The scheme for entanglement teleportation is proposed to incorporate multipartite entanglement of four qubits as a quantum channel. Based on the invariance of entanglement teleportation under arbitrary two-qubit unitary transformation, we derive relations of separabilities for joint measurements at a sending station and for unitary operations at a receiving station. From the relations of separabilities it is found that an inseparable quantum channel always leads to a total teleportation of entanglement with an inseparable joint measurement and/or a nonlocal unitary operation.