发表机构
Department of Physics, Indian, Institute of Technology Guwahati, Guwahati-781039, (India)
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究通过后选择机制实现三能级非厄米量子电池，分析不同驱动协议下的充电动力学，揭示测量轴与驱动对充电速率、ergotropy和量子相干性的调控作用。
AI 中文摘要
量子电池是利用量子系统存储有用能量，并随后可提取以做功的量子系统。在本工作中，我们研究了在连续测量和基于后选择的非厄米量子电池（由三能级系统实现）下的充电动力学。通过后选择无量子跳跃$|1\rangle \rightarrow |0\rangle$的轨迹，动力学被有效限制在二能级流形中。我们分析了在$\sigma_x$和$\sigma_y$驱动协议下的充电动力学，并研究了失谐、相干驱动、非线性和测量反作用的作用。我们还分析了在后选择下量子相干性的产生和动力学，量子相干性在量子电池中起着关键作用。我们结果相对于一般二能级系统以及Lindblad动力学的优势和比较也被突出展示。我们的工作探索了测量轴与驱动协议之间的相互作用，这些相互作用控制着非厄米、高度可调且可控的量子电池的充电速率、ergotropy和量子相干性。
英文摘要
Quantum batteries are quantum systems that store useful energy, which can be subsequently extracted to perform work. In this paper, we investigate the charging dynamics of the quantum battery under continuous measurements and post-selection. By post-selecting the trajectories with no quantum jump $|1\rangle \rightarrow |0\rangle$ in a three-level system, the dynamics is effectively confined to a two-level $(|2\rangle-|1\rangle)$ manifold. We analyze the resulting charging dynamics under both $σ_x$- and $σ_y$-driving protocols and investigate the roles of detuning, coherent driving, non-linearity, and measurement backaction. The generation and dynamics of quantum coherence, which plays a pivotal role in quantum battery, are also analyzed under post-selection. The advantage and comparison of our results over those of a generic two-level system and with the Lindblad dynamics are also highlighted. Our work explores the interplay between the measurement axis and the driving protocols that govern the charging rate, ergotropy, and quantum coherence of the non-Hermitian, highly tunable, and controllable quantum battery.
