  In this paper, we consider quantum correlations (quantum discord and local
quantum uncertainty) in a vertical quantum dot. Their dependencies on magnetic
field and temperature are presented in detail. It is noticeable that, quantum
discord and local quantum uncertainty behavior is similar to a large extent. In
addition, the time evolution of quantum discord and local quantum uncertainty
under dephasing and amplitude damping channels is investigated. It has been
found that, for some Belldiagonal states quantum discord is invariant under
some decoherence in a finite time interval [Phys. Rev. Lett. 104, 200401
(2010)]. Also, our results show that quantum discord is invariant under
dephasing channel for a finite time interval in a vertical quantum dot, while
this phenomenon does not occurs for local quantum uncertainty case.
