Entanglement witnesses and geometry of entanglement of two-qutrit states
- Autor(en)
- Reinhold Bertlmann, Philipp Krammer
- Abstrakt
We construct entanglement witnesses with regard to the geometric structure of the Hilbert–Schmidt space and investigate the geometry of entanglement. In particular, for a two-parameter family of two-qutrit states that are part of the magic simplex, we calculate the Hilbert–Schmidt measure of entanglement. We present a method to detect bound entanglement which is illustrated for a three-parameter family of states. In this way, we discover new regions of bound entangled states. Furthermore, we outline how to use our method to distinguish entangled from separable states.
- Organisation(en)
- Teilchenphysik
- Journal
- Annals of Physics
- Band
- 324
- Seiten
- 1388-1407
- Anzahl der Seiten
- 20
- ISSN
- 0003-4916
- DOI
- https://doi.org/10.1016/j.aop.2009.01.008
- Publikationsdatum
- 2009
- Peer-reviewed
- Ja
- ÖFOS 2012
- 1030 Physik, Astronomie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/d69d66e0-c454-45f2-9911-c7f760e02052