|
| related topics |
| {entanglement, phys, rev} |
| {state, states, entangled} |
| {states, state, optimal} |
| {alice, bob, state} |
| {let, theorem, proof} |
| {algorithm, log, probability} |
| {state, phys, rev} |
|
Optimal Entanglement Enhancement for Mixed States
Adrian Kent, Noah Linden, Serge Massar
abstract: We consider the actions of protocols involving local quantum operations and
classical communication (LQCC) on a single system consisting of two separated
qubits. We give a complete description of the orbits of the space of states
under LQCC and characterise the representatives with maximal entanglement of
formation. We thus obtain a LQCC entanglement concentration protocol for a
single given state (pure or mixed) of two qubits which is optimal in the sense
that the protocol produces, with non-zero probability, a state of maximal
possible entanglement of formation. This defines a new entanglement measure,
the maximum extractable entanglement.
- oai_identifier:
- oai:arXiv.org:quant-ph/9902022
- categories:
- quant-ph
- comments:
- Final version: to appear in Phys. Rev. Lett
- doi:
- 10.1103/PhysRevLett.83.2656
- arxiv_id:
- quant-ph/9902022
- journal_ref:
- Phys.Rev.Lett. 83 (1999) 2656-2659
- report_no:
- DAMTP-1999-15, ULB-TH/99-02
- created:
- 1999-02-05
- updated:
- 1999-09-04
Full article ▸
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