Multipartite positive-partial-transpose inequalities exponentially stronger than local reality inequalities
Journal Article
·
· Physical Review. A
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)
We show that positivity of every partial transpose of N-partite quantum states implies inequalities on Bell correlations which are stronger than standard Bell inequalities by a factor of 2{sup (N-1)/2}. A violation of the inequality implies that the system is in a bipartite distillable entangled state. It turns out that a family of N-qubit bound entangled states proposed by Duer [Phys. Rev. Lett. 87, 230402 (2001)] violates the inequality for N{>=}4.
- OSTI ID:
- 21016060
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multipartite bound entanglement and three-setting Bell inequalities
Functional Bell inequalities can serve as a stronger entanglement witness than conventional Bell inequalities
Bound entanglement maximally violating Bell inequalities: Quantum entanglement is not fully equivalent to cryptographic security
Journal Article
·
Thu Oct 31 23:00:00 EST 2002
· Physical Review. A
·
OSTI ID:20632264
Functional Bell inequalities can serve as a stronger entanglement witness than conventional Bell inequalities
Journal Article
·
Sat Nov 30 23:00:00 EST 2002
· Physical Review. A
·
OSTI ID:20632426
Bound entanglement maximally violating Bell inequalities: Quantum entanglement is not fully equivalent to cryptographic security
Journal Article
·
Sat Jul 15 00:00:00 EDT 2006
· Physical Review. A
·
OSTI ID:20852858