Note: This content is accessible to all versions of every browser. However, this browser does not seem to support current Web standards, preventing the display of our site's design details.

  

Distinguishing Separable and Entangled States

Author(s):

A. Doherty, P.A. Parrilo, F. Spedalieri
Conference/Journal:

Phys. Rev., Lett. 88, 187904
Abstract:

We show how to design families of operational criteria that distinguish entangled from separable quantum states. The simplest of these tests corresponds to the well-known Peres-Horodecki positive partial transpose (PPT) criterion, and the more complicated tests are strictly stronger. The new criteria are tractable due to powerful computational and theoretical methods for the class of convex optimization problems known as semidefinite programs. We successfully applied the results to many low-dimensional states from the literature where the PPT test fails. As a by-product of the criteria, we provide an explicit construction of the corresponding entanglement witnesses.

Year:

2002
Type of Publication:

(01)Article
Supervisor:



File Download:

Request a copy of this publication.
(Uses JavaScript)
% Autogenerated BibTeX entry
@Article { DohPar:2002:IFA_642,
    author={A. Doherty and P.A. Parrilo and F. Spedalieri},
    title={{Distinguishing Separable and Entangled States}},
    journal={Phys. Rev.},
    year={2002},
    volume={},
    number={},
    pages={},
    month=may,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=642}
}
Permanent link