MiS Preprint Repository

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 ( 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

Unifying Treatment of Discord via Relative Entropy

Lin Zhang, Shao-Ming Fei and Jun Zhu


We study the monotonicity inequality of relative entropy under completely positive linear maps. A new form of zero-discord state via Petz's monotonicity condition on relative entropy with equality has been derived systematically. A generalization of symmetric zero-discord states is presented and the related physical implications are discussed.


Related publications

2013 Repository Open Access
Lin Zhang, Shao-Ming Fei and Jun Zhu

Unifying treatment of discord via relative entropy

In: International journal of theoretical physics, 52 (2013) 6, pp. 1946-1955