Persistent entanglement in arrays of interacting particles.

@article{Briegel2001PersistentEI,
  title={Persistent entanglement in arrays of interacting particles.},
  author={Hans J. Briegel and Robert Raussendorf},
  journal={Physical review letters},
  year={2001},
  volume={86 5},
  pages={
          910-3
        }
}
We study the entanglement properties of a class of N-qubit quantum states that are generated in arrays of qubits with an Ising-type interaction. These states contain a large amount of entanglement as given by their Schmidt measure. They also have a high persistency of entanglement which means that approximately N/2 qubits have to be measured to disentangle the state. These states can be regarded as an entanglement resource since one can generate a family of other multiparticle entangled states… 

Figures from this paper

Can We Entangle Entanglement?
In this chapter, nested multilevel entanglement is formulated and discussed in terms of Matryoshka states. The generation of such states that contain nested patterns of entanglement, based on an
Fully multi-qubit entangled states
TLDR
It is proved that in connected graph states of N qubits there is no genuine k-qubit entanglement, 2 ≤ k ≤ N - 1, among every k qubits, which naturally lead to the definition of fully multi-qu bit entangled states.
Dynamics of the entanglement witness for three qubits in common environment
In the measurement-based model of quantum computing, a one-way quantum computer consisting of many qubits can be immersed in a common environment as a simple decoherence mechanism. This paper studies
Quantum entanglement via two-qubit quantum Zeno dynamics
We study the two-particle quantum Zeno dynamics with a type of nondeterministic collective measurement whose outcome indicates whether the two-particle state has been collapsed to 11. Such a
Efficient generation of graph states for quantum computation
We present an entanglement generation scheme which allows arbitrary graph states to be efficiently created in a linear quantum register via an auxiliary entangling bus (EB). The dynamical evolution
Quantum-information approach to the Ising model: Entanglement in chains of qubits
Simple physical interactions between spin-1/2 particles may result in quantum states that exhibit exotic correlations that are difficult to find if one simply explores state spaces of multipartite
Effect of Entanglement on Geometric Phase for Multi-Qubit States
TLDR
This work probes the structures of multi-qubit states more finely using local invariants and suggests that the cause of the entanglement correction is a recently introduced gauge field-like SL(2,ℂ)-invariant called twist.
A bonding model of entanglement for N-qubit graph states
The class of entangled N-qubit states known as graph states, and the corresponding stabilizer groups of N-qubit Pauli observables, have found a wide range of applications in quantum information
Scalable multiparticle entanglement of trapped ions
TLDR
The scalable and deterministic generation of four-, five-, six-, seven- and eight-particle entangled states of the W type with trapped ions are reported, which obtain the maximum possible information on these states by performing full characterization via state tomography, using individual control and detection of the ions.
...
1
2
3
4
5
...

References

SHOWING 1-6 OF 6 REFERENCES
Phys
  • Rev. Lett. 83, 2274
  • 1999
Fortsch
  • Phys. 46, 567
  • 1998
Phys
  • Rev. A 58, 910
  • 1998
Phys
  • Lett. A 246, 1
  • 1998
Science 273
  • 1073
  • 1996
Models of disorder