Phys. Rev. A 80, 022317 (2009) [4 pages]

Detection and typicality of bound entangled states

Abstract

References

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Joonwoo Bae¹, Markus Tiersch², Simeon Sauer³, Fernando de Melo^2,*, Florian Mintert², Beatrix Hiesmayr⁴, and Andreas Buchleitner²
¹School of Computational Sciences, Korea Institute for Advanced Study, Seoul 130-012, Korea
²Physikalisches Institut, Albert-Ludwigs-Universität, Hermann-Herder-Str. 3, D-79104 Freiburg, Germany
³Physikalisch-Astronomische Fakultät, Friedrich-Schiller-Universität Jena, Max-Wien-Platz 1, D-07743 Jena, Germany
⁴Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria

Received 25 February 2009; published 13 August 2009

We derive an explicit analytic estimate for the entanglement of a large class of bipartite quantum states, which extends into bound entanglement regions. This is done by using an efficiently computable concurrence lower bound, which is further employed to numerically construct a volume of 3×3 bound entangled states.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.80.022317

DOI:

10.1103/PhysRevA.80.022317

PACS:

03.67.Mn

^*fernando.demelo@physik.uni-freiburg.de

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Phys. Rev. A 80, 022317 (2009) [4 pages]

Detection and typicality of bound entangled states