Two-state teleportation

Details Two-state teleportation Two-state teleportation

1999-10-06

arxiv.org/abs/quant-ph/9910028v2

Physics

Quantum Physics

20 pages, 6 figures

Scientific paper

10.1103/PhysRevA.61.062306

Quantum teleportation with additional a priori information about the input state achieves higher fidelity than teleportation of a completely unknown state. However, perfect teleportation of two non-orthogonal input states requires the same amount of entanglement as perfect teleportation of an unknown state, namely one ebit. We analyse how well two-state teleportation can be achieved using every degree of pure-state entanglement, and discuss the fidelity of `teleportation' that can be achieved with only classical communication but no shared entanglement. A two-state telecloning scheme is constructed.

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