超导量子电池的性能

IF 4.3 Q1 OPTICS
Samira Elghaayda, Asad Ali, Saif Al-Kuwari, Artur Czerwinski, Mostafa Mansour, Saeed Haddadi
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引用次数: 0

摘要

寻找一种既能展示量子优势,又能在实验生产中保持可行性的量子电池模型是一项相当大的挑战。本文介绍了一种超导量子电池(SQB)模型。该模型由两个耦合的超导量子比特组成,它们在单一充电过程中相互作用,同时与热储保持平衡。首先对模型进行了描述,提供了量子优势的证据,然后讨论了超导量子比特电池的制造过程。推导了量子阱自洽性、瞬时功率和容量的解析表达式,以及它们与量子相干性的关系。研究表明,利用约瑟夫森能量的集体效应和量子比特之间的耦合能量可以进行优化,从而改善能量再分配并显着提高充电效率。这项工作强调了调整系统参数的复杂性,这增加了从SQB中提取工作的潜力,提供了对所涉及的充电机制的更深层次的理解。这些发现可以应用于超导量子电路电池架构,强调了在这些系统中高效储能的可行性。这些结果为提出新的超导器件铺平了道路,强调了它们在高效储能方面的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Performance of a Superconducting Quantum Battery

Performance of a Superconducting Quantum Battery

Performance of a Superconducting Quantum Battery

Performance of a Superconducting Quantum Battery

Finding a quantum battery model that demonstrates a quantum advantage while remaining feasible for experimental production is a considerable challenge. Here, a superconducting quantum battery (SQB) model that exhibits such an advantage is introduced. The model consists of two coupled superconducting qubits that interact during the unitary charging process while remaining in equilibrium with a thermal reservoir. First, the model is described, evidence of the quantum advantage is provided, and then the fabrication process of the battery is discussed using superconducting qubits. Analytical expressions for the ergotropy, instantaneous power, and capacity of the SQB, as well as their connection to quantum coherence are derived. It is demonstrated that leveraging the collective effects of Josephson energies and the coupling energy between qubits allows for optimization, resulting in improved energy redistribution and a significant enhancement in charging efficiency. This work highlights the complexities of tuning system parameters, which increase the potential for work extraction from the SQB, providing a deeper understanding of the charging mechanisms involved. These findings can be applied to superconducting quantum circuit battery architectures, underscoring the feasibility of efficient energy storage in these systems. These results pave the way for proposals of new superconducting devices, emphasizing their potential for efficient energy storage.

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CiteScore
7.90
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