论文标题
通过重复相互作用，在充电腔和自旋电池中的量子优势
Quantum advantage in charging cavity and spin batteries by repeated interactions
论文作者
论文摘要
最近，在碰撞模型中为量子电池充电的过程已经证明了无条件的优势。由是否可以通过实验观察到这种优势的问题，我们考虑了一个模型，其中电池是由量子谐波振荡器建模或大型自旋模型的，该模型是通过与非平衡量子位单元的重复相互作用充电的。对于这两个设置，我们都表明，量子协议可以显着胜过最通用的自适应经典方案，从而导致90 \％和38 \％的充电能力和大型自旋电池的充电能力提高。为了实现实现实现，我们还考虑了使用最新的微型主体和混合超导设备的实现，这种量子优势的鲁棒性（噪声和谐波）的鲁棒性。
Recently, an unconditional advantage has been demonstrated for the process of charging of a quantum battery in a collisional model. Motivated by the question of whether such an advantage could be observed experimentally, we consider a model where the battery is modeled by a quantum harmonic oscillator or a large spin, charged via repeated interactions with a stream of non-equilibrium qubit units. For both setups, we show that a quantum protocol can significantly outperform the most general adaptive classical schemes, leading to 90\% and 38\% higher charging power for the cavity and large spin batteries respectively. Towards an experimental realization, we also characterise the robustness of this quantum advantage to imperfections (noise and decoherence) considering implementations with state-of-the-art micromasers and hybrid superconducting devices.
