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

One-Way Deficit of Two Qubit $X$ States

Yao-Kun Wang, Naihuan Jing, Shao-Ming Fei, Zhi-Xi Wang, Jun-Peng Cao and Heng Fan


Quantum deficit originates in questions regarding work extraction from quantum systems coupled to a heat bath [Phys. Rev. Lett. 89, 180402 (2002)]. It links quantum correlations with quantum thermodynamics and provides a new standpoint for understanding quantum non-locality. In this paper, we propose a new method to evaluate the one-way deficit for a class of two-qubit states. The dynamic behavior of the one-way deficit under decoherence channel is investigated and it is shown that the one-way deficit of the $X$ states with five parameters is more robust against decoherence than entanglement.


Related publications

2015 Repository Open Access
Yao-Kun Wang, Nai-Huan Jing, Shao-Ming Fei, Zhi-Xi Wang, Jun-Peng Cao and Heng Fan

One-way deficit of two-qubit X states

In: Quantum information processing, 14 (2015) 7, pp. 2487-2497