|
| related topics |
| {state, states, entangled} |
| {states, state, optimal} |
| {entanglement, phys, rev} |
| {bell, inequality, local} |
| {observables, space, algebra} |
| {measurement, state, measurements} |
|
Entanglement Detection by Local Orthogonal Observables
Sixia Yu, Nai-le Liu
abstract: We propose a family of entanglement witnesses and corresponding positive maps
that are not completely positive based on local orthogonal observables. As
applications the entanglement witness of the $3\times 3$ bound entangled state
[P. Horodecki, Phys. Lett. A {\bf 232}, 333 (1997)] is explicitly constructed
and a family of $d$-dimensional bound entangled states is designed so that the
entanglement can be detected by permuting local orthogonal observables. Further
the proposed physically not implementable positive maps can be physically
realized by measuring a Hermitian correlation matrix of local orthogonal
observables.
- oai_identifier:
- oai:arXiv.org:quant-ph/0412220
- categories:
- quant-ph
- comments:
- 4 pages, 1 figure
- doi:
- 10.1103/PhysRevLett.95.150504
- arxiv_id:
- quant-ph/0412220
- created:
- 2004-12-31
- updated:
- 2005-01-06
Full article ▸
|
|
| related documents |
| 0510078v3 |
| 0307023v2 |
| 0608012v2 |
| 0409140v1 |
| 0311184v1 |
| 9607009v2 |
| 0511116v2 |
| 0509218v1 |
| 0405063v2 |
| 0401129v2 |
| 0604123v2 |
| 0606017v1 |
| 0112022v2 |
| 0109102v1 |
| 0512081v2 |
| 0510237v1 |
| 0307073v4 |
| 0208041v1 |
| 0305080v1 |
| 0311051v1 |
| 0404051v4 |
| 0502082v3 |
| 0310027v1 |
| 0612052v2 |
| 0309216v5 |
|