Physics – Quantum Physics
Scientific paper
2008-07-30
Phys. Rev. A 78, 042327 (2008)
Physics
Quantum Physics
11 pages, 4 figures; 2nd version changed considerably and a detailed derivation of the multipartite measure is included
Scientific paper
10.1103/PhysRevA.78.042327
We construct a simplex for multipartite qubit states of even number n of qubits, which has the same geometry concerning separability, mixedness, kind of entanglement, amount of entanglement and nonlocality as the bipartite qubit states. We derive the entanglement of the class of states which can be described by only three real parameters with the help of a multipartite measure for all discrete systems. We prove that the bounds on this measure are optimal for the whole class of states and that it reveals that the states possess only n-partite entanglement and not e.g. bipartite entanglement. We then show that this n-partite entanglement can be increased by stochastic local operations and classical communication to the purest maximal entangled states. However, pure n-partite entanglement cannot be distilled, consequently all entangled states in the simplex are n-partite bound entangled. We study also Bell inequalities and find the same geometry as for bipartite qubits. Moreover, we show how the (hidden) nonlocality for all n-partite bound entangled states can be revealed.
Hiesmayr Beatrix C.
Hipp F.
Huber Marcus
Krammer Ph.
Spengler Ch.
No associations
LandOfFree
A simplex of bound entangled multipartite qubit states does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A simplex of bound entangled multipartite qubit states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A simplex of bound entangled multipartite qubit states will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-259537