|
| related topics |
| {alice, bob, state} |
| {key, protocol, security} |
| {error, code, errors} |
| {let, theorem, proof} |
| {entanglement, phys, rev} |
| {measurement, state, measurements} |
| {state, phys, rev} |
| {group, space, representation} |
|
Criteria for unconditional entanglement purification
Xiang-Bin Wang
abstract: We show that the fidelity result of advantage distillation (Bennett et al,
Phys. Rev. Lett., 76, 722(1996)) is not only for the product state of raw
pairs, it is actually correct with whatever form of state of raw pairs. We then
give a general theorem for unconditional entanglement purification. This
theorem lists the conditions on which the fidelity result of a purification
protocol keeps unchanged from product form of raw-pair state and arbitrary form
of raw-pair state. Using this theorem, we find that all existing purification
puricfication can work for arbitrary initial state of raw pairs.
- oai_identifier:
- oai:arXiv.org:quant-ph/0403058
- categories:
- quant-ph
- comments:
- The motivation and the title are changed
- arxiv_id:
- quant-ph/0403058
- created:
- 2004-03-07
- updated:
- 2004-07-21
Full article ▸
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