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By considering the local quantum uncertainty (LQU) as a measure of quantumcorrelations, the thermal evolution of a two-qubit-superconducting system isinvestigated. We show that the thermal LQU can be increased by manipulating theHamiltonian parameters such as the mutual coupling and Josephson energies,however, it undergoes sudden transitions at specific temperatures. Furthermore,a detailed analysis is presented regarding the impact of decohering channels onthermal LQU. This controllable LQU in engineering applications can disclose theadvantage enabled in the superconducting charge qubits for designing quantumcomputers and quantum batteries.

Thermal local quantum uncertainty in a two-qubit-superconducting system under decoherence