|
| related topics |
| {states, state, optimal} |
| {entanglement, phys, rev} |
| {state, states, entangled} |
| {qubit, qubits, gate} |
| {bell, inequality, local} |
| {group, space, representation} |
| {state, phys, rev} |
|
Optimal copying of entangled two-qubit states
J. Novotny, G. Alber, I. Jex
abstract: We investigate the problem of copying pure two-qubit states of a given degree
of entanglement in an optimal way. Completely positive covariant quantum
operations are constructed which maximize the fidelity of the output states
with respect to two separable copies. These optimal copying processes hint at
the intricate relationship between fundamental laws of quantum theory and
entanglement.
- oai_identifier:
- oai:arXiv.org:quant-ph/0411105
- categories:
- quant-ph
- comments:
- 13 pages, 7 figures
- doi:
- 10.1103/PhysRevA.71.042332
- arxiv_id:
- quant-ph/0411105
- created:
- 2004-11-15
Full article ▸
|
|
| related documents |
| 0506107v1 |
| 0605172v3 |
| 0404137v1 |
| 9810008v2 |
| 0406237v1 |
| 9801009v1 |
| 0603184v1 |
| 0411046v2 |
| 0504016v2 |
| 0509100v3 |
| 0603168v1 |
| 0605161v2 |
| 0601017v4 |
| 0005132v2 |
| 0602112v1 |
| 0510161v1 |
| 0604202v1 |
| 0701143v2 |
| 0502103v2 |
| 0501084v2 |
| 0610196v2 |
| 0605041v4 |
| 0502177v1 |
| 0610058v2 |
| 0510156v1 |
|