Teleportation and Dense Coding with Genuine Multipartite Entanglement
Abstract
We present an explicit protocol E0 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 D0 involving our state as a shared resource of entanglement. Both D0 and E0 indicate that our four-qubit state is a likely candidate for the genuine four-partite analogue to a Bell state.
- Publication:
-
Physical Review Letters
- Pub Date:
- February 2006
- DOI:
- arXiv:
- arXiv:quant-ph/0510029
- Bibcode:
- 2006PhRvL..96f0502Y
- Keywords:
-
- 03.67.Hk;
- 03.67.Mn;
- Quantum communication;
- Entanglement production characterization and manipulation;
- Quantum Physics
- E-Print:
- 9 pages, 0 figure