A computable measure of entanglement

2001/02/22 by G. Vidal, R. F. Werner · 14 citations
Physics and Astronomy · #quant-ph

paper · pdf · doi:10.1103/physreva.65.032314

published as Phys. Rev. A 65, 032314 (2002) · 12 pages, latex, no figures

arxiv created 2001/02/22 · arxiv updated 2009/12/01

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.

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