Quantum Fisher information versus quantum skew information in double quantum dots with Rashba interaction

Exploring the basic features of solid-state systems is a crucial route for reaping their quantum advantages. Quantum dots (QDs) emerge as a flexible substrate for technical advances in computing power and nanodevices. In this regard, a proposed model to inspect the behavior of thermal correlations in terms of local quantum Fisher information and local quantum uncertainty in double QDs with the interplay of Rashba spin-orbit interaction is examined. The Rashba spin-orbit interaction is externally adjustable and can be used to tune the quantum correlations present in the system. Consequently, we show that the dynamics of logarithmic negativity, skew information, and local quantum Fisher information change in terms of the Rashba coupling, the double QDs' parameters, and temperature. Importantly, we also demonstrate that we can tweak specific parameters to preserve quantum resources in the system. These observations give a solid grasp of the quantum features of such a quantum dot system, showing promise for establishing quantum technologies.