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Open AccessPhysics

Computable measure of entanglement

G. Vidal, R. Werner

2001.2.22PHYSICAL REVIEW A

DOI: 10.1103/physreva.65.032314

tlooto Summary

A measure of entanglement that can be computed effectively for any mixed state of an arbitrary bipartite system is presented and it is shown that it does not increase under local manipulations of the system.

Abstract

We present a measure of entanglement that can be computed effectively for any mixed state of an arbitrary bipartite system. We show that it does not increase under local manipulations of the system, and use it to obtain a bound on the teleportation capacity and on the distillable entanglement of mixed states.

Citation format

VIDAL, G.; WERNER, R. Computable measure of entanglement [preprint]. arXiv, 2001. arXiv:quant-ph/0102117.