Thermal local quantum uncertainty in a two-qubit-superconducting system under decoherence
By considering the local quantum uncertainty (LQU) as a measure of quantum correlations, the thermal evolution of a two-qubit-superconducting system is investigated. We show that the thermal LQU can be increased by manipulating the Hamiltonian parameters such as the mutual coupling and Josephson ene...
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| creator | Pourkarimi, M R Haddadi, S Nashaat, M Kulikov, K V Shukrinov, Yu M |
| description | By considering the local quantum uncertainty (LQU) as a measure of quantum correlations, the thermal evolution of a two-qubit-superconducting system is investigated. We show that the thermal LQU can be increased by manipulating the Hamiltonian 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 on thermal LQU. This controllable LQU in engineering applications can disclose the advantage enabled in the superconducting charge qubits for designing quantum computers and quantum batteries. |
| doi_str_mv | 10.48550/arxiv.2308.03596 |
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| subjects | Controllability Mutual coupling Physics - Quantum Physics Quantum computers Quantum entanglement Qubits (quantum computing) Superconductivity Thermal evolution Uncertainty |
| title | Thermal local quantum uncertainty in a two-qubit-superconducting system under decoherence |
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