InterJournal Complex Systems, 30
Status: Accepted
Manuscript Number: [30]
Submission Date: 963011
How much does it cost to teleport?
Author(s): H Chau ,Hoi-Kwong Lo

Subject(s): CX.07

Category: Brief Article


We show that the entropy of entanglement of a state characterizes its ability to teleport. In particular, in order to teleport faithfully an unknown quantum N-state, the two users must share an entangled state with at least log_2 N bits entropy of entanglement. We also note that the maximum capacity for a mixed state M to teleport equals the maximum amount of entanglement entropy that can be distilled out from M. Our result, therefore, provides an alternative interpretation for entanglement purification.

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