论文标题
超导式频率谐振器量子电池
Superconducting transmon qubit-resonator quantum battery
论文作者
论文摘要
量子电池（QB）是微型储能和释放设备，在未来的量子技术中起着至关重要的作用。在这里，在超导电路上提出了QB的实施方案，该方案由$ n $耦合的Transmon Qubits和一维输电线谐振器组成。我们得出了QB系统的哈密顿量，并通过考虑三个衰减渠道来研究其充电性能。我们发现，衰减通道的存在抑制了储能过程的高振荡，从而意识到了稳定且强大的QB。特别是，与谐振器的衰减和量子放松相比，QB的值在我们的QB中显示出违反直觉的优势。我们表明，最近的邻居相互作用始终对稳定能量产生积极影响，并且耦合仅显着影响完全非排定基态区域的最大充电能力。我们还通过在实验参数下评估QB性能来证明我们的方法的可行性。
Quantum battery (QB) is the miniature energy storage and release device and plays a crucial role in future quantum technology. Here, an implementation scheme of a QB is proposed on a superconducting circuit which is composed by $N$ coupled transmon qubits and a one-dimensional transmission line resonator. We derive the Hamiltonian of the QB system and investigate its charging performance by considering three decay channels. We find that the presence of the decay channels suppresses the high oscillation of the energy storage process, thereby realizing a stable and powerful QB. In particular, compared with the resonator decay and the qubit relaxation, the qubit dephasing shows a counterintuitive advantage in our QB. We show that the nearest neighbor interaction always have a positive impact on the stable energy and the coupling only significantly influences the maximum charging power in the fully nondegenerate ground state region. We also demonstrate the feasibility of our approach by evaluating the QB performance under experimental parameters.
