论文标题

IBM量子平台:量子电池视角

IBM quantum platforms: a quantum battery perspective

论文作者

Gemme, Giulia, Grossi, Michele, Ferraro, Dario, Vallecorsa, Sofia, Sassetti, Maura

论文摘要

我们首次将IBM量子芯片的性能描述为量子电池,专门针对单Qubit Armonk处理器。通过利用Qiskit软件包启用了一些IBM量子处理器的脉冲访问,我们研究了用于为这些微型电池充电的经典驱动器的不同配置文件的优势和局限性,从而在充电时间和存储的能量之间建立了最佳折衷。此外,我们考虑了各种可能的初始条件在量子电池功能中所起的作用。作为我们的分析的主要结果,我们观察到在量子量的初始化阶段发生不可避免的误差,这可能对量子计算应用有害,只会影响能量传递和存储。这可以违反直觉来改善表演。这是一个有力的指示,即IBM量子设备已经处于适当的参数范围,被认为是良好且稳定的量子电池,与最近在文献中讨论的最新设备的状态相媲美。

We characterize for the first time the performances of IBM quantum chips as quantum batteries, specifically addressing the single-qubit Armonk processor. By exploiting the Pulse access enabled to some of the IBM Quantum processors via the Qiskit package, we investigate advantages and limitations of different profiles for classical drives used to charge these miniaturized batteries, establishing the optimal compromise between charging time and stored energy. Moreover, we consider the role played by various possible initial conditions on the functioning of the quantum batteries. As main result of our analysis, we observe that unavoidable errors occurring in the initialization phase of the qubit, which can be detrimental for quantum computing applications, only marginally affects energy transfer and storage. This can lead counter-intuitively to improvements of the performances. This is a strong indication of the fact that IBM quantum devices are already in the proper range of parameters to be considered as good and stable quantum batteries, comparable to state of the art devices recently discussed in literature.

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