|
related topics |
{alice, bob, state} |
{information, entropy, channel} |
{entanglement, phys, rev} |
{error, code, errors} |
{state, states, entangled} |
{particle, mechanics, theory} |
|
How much does it cost to teleport?
H. F. Chau, H. -K. Lo
abstract: 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 ${\cal M}$ to teleport equals the maximum amount of entanglement
entropy that can be distilled out from ${\cal M}$. Our result, therefore,
provides an alternative interpretation for entanglement purification.
- oai_identifier:
- oai:arXiv.org:quant-ph/9605025
- categories:
- quant-ph
- comments:
- 5 pages, extended abstract submitted to PHYSCOMP96
- arxiv_id:
- quant-ph/9605025
- report_no:
- IASSNS-HEP-96/51
- created:
- 1996-05-16
Full article ▸
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