Entangled graphs II: Classical correlations in multi-qubit entangled systems

Details Entangled graphs II: Classical correlations in multi-qubit entangled systems Entangled graphs II: Classical correlations in multi-qubit entangled systems

2003-06-02

arxiv.org/abs/quant-ph/0306001v1

Phys. Rev. A 68, 012313 (2003)

Physics

Quantum Physics

7 pages, 4 figures, to appear in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.68.012313

Bipartite correlations in multi-qubit systems cannot be shared freely. The presence of entanglement or classical correlation on certain pairs of qubits may imply correlations on other pairs. We present a method of characterization of bi-partite correlations in multi-qubit systems using a concept of entangled graphs that has been introduced in our earlier work [M.Plesch and V.Buzek, Phys. Rev. A 67, 012322 (2003)]. In entangled graphs each qubit is represented by a vertex while the entanglement and classical correlations are represented by two types of edges. We prove by construction that any entangled graph with classical correlations can be represented by a mixed state of N qubits. However, not all entangled graphs with classical correlations can be represented by a pure state.

Affiliated with

Also associated with

No associations

Rating

Entangled graphs II: Classical correlations in multi-qubit entangled systems 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 Entangled graphs II: Classical correlations in multi-qubit entangled systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Entangled graphs II: Classical correlations in multi-qubit entangled systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-485018