Entanglement witnesses and geometry of entanglement of two-qutrit states
- Author(s)
- Reinhold Bertlmann, Philipp Krammer
- Abstract
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(s)
- Particle Physics
- Journal
- Annals of Physics
- Volume
- 324
- Pages
- 1388-1407
- No. of pages
- 20
- ISSN
- 0003-4916
- DOI
- https://doi.org/10.1016/j.aop.2009.01.008
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/entanglement-witnesses-and-geometry-of-entanglement-of-twoqutrit-states(d69d66e0-c454-45f2-9911-c7f760e02052).html