Abstract
We investigate the quantum coherence in a vertical quantum dot system (QDS) with the magnetic field considering electron-electron interaction and Coulomb-blocked systems. We show how the important physical parameters can affect the variation of the quantum coherence. Moreover, we demonstrate that there is a temperature optimal value such that the quantum coherence is maximal and that the retardation of the coherence loss may take place by adjusting the physical parameters. Finally, we display the monotonic dependence of the coherence measures and total quantum correlation on the physical parameters according to the projective measurements.
•Quantum coherence in quantum dot.•Significant of isolated quantum system dot in different tasks of quantum information and optics.•Temperature effect on the coherence behavior.•Asymptotic limit behavior of the quantum coherence.•Monotonic dependence of the coherence and total quantum correlation on the physical parameters.