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This study explores the dynamics of a two-qubit superconducting charge system, a prevalent technology in quantum computing. We utilize logarithmic negativity and local quantum Fisher information to gauge the entanglement and correlations within this system. Our findings indicate a significant influence of temperature on the system, leading to a reduction in both measures. However, adjusting system parameters can enhance these quantum quantifiers. Furthermore, we note that the local quantum Fisher information exhibits greater resilience to temperature-induced degradation compared to logarithmic negativity.

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Exploring Entanglement and Quantum Fisher Information in a System of Two Superconducting Qubits Subjected to Thermal Noise

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Mourad Benzahra,
  • Mostafa Mansour

摘要

This study explores the dynamics of a two-qubit superconducting charge system, a prevalent technology in quantum computing. We utilize logarithmic negativity and local quantum Fisher information to gauge the entanglement and correlations within this system. Our findings indicate a significant influence of temperature on the system, leading to a reduction in both measures. However, adjusting system parameters can enhance these quantum quantifiers. Furthermore, we note that the local quantum Fisher information exhibits greater resilience to temperature-induced degradation compared to logarithmic negativity.