The advantages of quantum dissonance under the environment effect

We discuss the dynamics of quantum dissonance, quantum discord and entanglement for bipartite Bell-diagonal states independently interacting with dephasing reservoirs. Our aim is to reveal mainly the behavior of dissonance comparatively to that of the two other kinds of quantum correlations. Particularly, we show that the sensitivity of these quantum correlations against the environment effect increases upon the increase in the independent random variable e. Also, we show that the dissonance is proved to be more robust to the decoherence effect than the rest of quantum correlations; it survives along the time of evolution. This indicates its potential to be fully responsible for the quantum characteristics of the system evolution under the environment effect and ensures that the system never loses its non-classicality in such conditions. Moreover, we show that its role in capturing the quantum correlations without entanglement still preserved under the influence of the system–environment interaction. Further, we find that it is very useful for predicting the quantum correlations behavior in an open bipartite system; also it can be an efficient tool for the discrimination of its state.