Measure and control of quantum correlations in optomechanics

Abstract

We explore the quantum correlations, fidelity and quantum thermodynamics of two coupled double quantum dots containing two excess electrons. In this regard, we investigate and compare the evolution of those measures under thermal effects and tunneling coupling. We find the hierarchy of quantum correlations, and one-way steering between the two quantum dots. We found, as expect that the quantum correlations are diminishes by increasing the values of temperature. We show that this state can be used for quantum teleportation. On the other, we address the extracting work and efficiency of the state. We compare the extraction work with the bare energies. Our results show that quantum dots states have a reliable and better capacity to preserve quantum correlations and remain one of the good resources for the deployment of quantum information processing protocols.