Liu Zhe, Hanna Gabriel
Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada.
Molecules. 2024 Feb 17;29(4):889. doi: 10.3390/molecules29040889.
In a previous study, we proposed an open quantum network model of a quantum battery (QB) that possesses dark states owing to its structural exchange symmetries. While in a dark state, the QB is capable of storing an exciton without any environment-induced population losses. However, when the structural exchange symmetry is broken, the QB begins to discharge the exciton towards its exit site. In this article, we start by demonstrating that this QB is not only loss-free with respect to exciton population during the storage phase, but also with respect to the QB energy. We then explore the exciton population and energy transfer dynamics of the QB during the discharge phase over a wide range of site energies, bath temperatures, and bath reorganization energies. Our results shed light on how to optimize the QB's population and energy transfer dynamics for different purposes.
在之前的一项研究中，我们提出了一种量子电池（QB）的开放量子网络模型，该模型由于其结构交换对称性而具有暗态。处于暗态时，量子电池能够存储一个激子，而不会因环境导致任何粒子数损失。然而，当结构交换对称性被打破时，量子电池开始将激子向其出口位点放电。在本文中，我们首先证明这种量子电池不仅在存储阶段激子粒子数方面无损失，而且在量子电池能量方面也无损失。然后，我们在广泛的位点能量、浴温以及浴重组能范围内，探索了量子电池在放电阶段的激子粒子数和能量转移动力学。我们的结果揭示了如何针对不同目的优化量子电池的粒子数和能量转移动力学。
