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We have decided to discontinue the publication of preprints on our preprint server as of 1 March 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV (www.arxiv.org) that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.

MiS Preprint
17/2009

On Estimation of Fully Entangled Fraction

Ruijuan Gu, Ming Li, Shao-Ming Fei and Xianqing Li-Jost

Abstract

We study the fully entangled fraction (FEF) of arbitrary mixed states. New upper bounds of FEF are derived. These upper bounds make complements on the estimation of the value of FEF. For weakly mixed quantum states, an upper bound is shown to be very tight to the exact value of FEF.

Received:
25.03.09
Published:
31.03.09
PACS:
03.67.-a
Keywords:
entanglement, Fidelity, Teleportation

Related publications

inJournal
2010 Repository Open Access
Ruijuan Gu, Ming Li, Shao-Ming Fei and Xianqing Li-Jost

On estimation of fully entangled fraction

In: Communications in theoretical physics, 53 (2010) 2, pp. 265-268