Multipartite entanglement, quantum-error-correcting codes, and entangling power of quantum evolutions

Details Multipartite entanglement, quantum-error-correcting codes, and entangling power of quantum evolutions Multipartite entanglement, quantum-error-correcting codes, and entangling power of quantum evolutions

2003-10-21

arxiv.org/abs/quant-ph/0310137v3

Phys. Rev. A 69, 052330 (2004)

Physics

Quantum Physics

13 pages, 1 figure

Scientific paper

10.1103/PhysRevA.69.052330

We investigate the average bipartite entanglement, over all possible divisions of a multipartite system, as a useful measure of multipartite entanglement. We expose a connection between such measures and quantum-error-correcting codes by deriving a formula relating the weight distribution of the code to the average entanglement of encoded states. Multipartite entangling power of quantum evolutions is also investigated.

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