Bound Entanglement Can Be Activated

1998/06/17 by Paweł Horodecki, Pawel Horodecki, Michał Horodecki +2 · 3 citations
Computer Science · Physics and Astronomy · #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1103/physrevlett.82.1056

published as Phys.Rev.Lett. 82 (1999) 1056-1059 · RevTeX, 4 pages

arxiv created 1998/06/17 · openalex publication_date 1999/02/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Bound entanglement is the noisy entanglement which cannot be distilled to a singlet form. Thus it cannot be used alone for quantum communication purposes. Here we show that, nevertheless, the bound entanglement can be, in a sense, pumped into a single pair of free entangled particles. It allows for teleportation via the pair with the fidelity impossible to achieve without support of bound entanglement.

Citations

• Mixed-state entanglement and distillation: is there a ``bound'' entanglement in nature?
• Separability Criterion for Density Matrices

Cited by

• Any multipartite entangled state violating the Mermin-Klyshko inequality can be distilled for almost all bipartite splits
• Characterizing entanglement with geometric entanglement witnesses
• Simplex of bound entangled multipartite qubit states