论文标题
激进对机理中自旋状态动力学的量子传感和控制
Quantum sensing and control of spin state dynamics in the radical pair mechanism
论文作者
论文摘要
在许多化学和生物系统中，激进对及其所经历的动力很普遍。具体而言，已经提出，激进对机理是由相对较强的超精细相互作用与其内在的核自旋环境产生的。尽管这种机制的存在是无可争议的，但纳米级细节仍有待实验显示。我们在这里分析量子传感器在存在弱磁场的情况下检测单个自由基对的自旋动力学（非马多维亚）的作用。我们展示了如何使用量子控制方法来区分进化的各个阶段的自由基对机理的动力学。我们设想了这些发现对磁体感受和其他生物化学过程中物理机制的理解具有深远的影响，并具有微观的细节。
Radical pairs and the dynamics they undergo are prevalent in many chemical and biological systems. Specifically, it has been proposed that the radical pair mechanism results from a relatively strong hyperfine interaction with its intrinsic nuclear spin environment. While the existence of this mechanism is undisputed, the nanoscale details remain to be experimentally shown. We analyze here the role of a quantum sensor in detecting the spin dynamics (non-Markovian) of individual radical pairs in the presence of a weak magnetic field. We show how quantum control methods can be used to set apart the dynamics of radical pair mechanism at various stages of the evolution. We envisage these findings having far-reaching implications to the understanding of the physical mechanism in magnetoreception and other bio-chemical processes with a microscopic detail.
