|
related topics |
{state, states, entangled} |
{let, theorem, proof} |
{entanglement, phys, rev} |
{alice, bob, state} |
{states, state, optimal} |
{group, space, representation} |
{bell, inequality, local} |
{observables, space, algebra} |
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Multipartite entanglement in 2 x 2 x n quantum systems
Akimasa Miyake, Frank Verstraete
abstract: We classify multipartite entangled states in the 2 x 2 x n (n >= 4) quantum
system, for example the 4-qubit system distributed over 3 parties, under local
filtering operations. We show that there exist nine essentially different
classes of states, and they give rise to a five-graded partially ordered
structure, including the celebrated Greenberger-Horne-Zeilinger (GHZ) and W
classes of 3 qubits. In particular, all 2 x 2 x n-states can be
deterministically prepared from one maximally entangled state, and some
applications like entanglement swapping are discussed.
- oai_identifier:
- oai:arXiv.org:quant-ph/0307067
- categories:
- quant-ph
- comments:
- 9 pages, 3 eps figures
- doi:
- 10.1103/PhysRevA.69.012101
- arxiv_id:
- quant-ph/0307067
- journal_ref:
- Phys. Rev. A 69, 012101 (2004)
- created:
- 2003-07-09
- updated:
- 2004-01-07
Full article ▸
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