论文标题
驱动的旋转动力学增强了加密磁磁体感受：迈向实时量子传感
Driven spin dynamics enhances cryptochrome magnetoreception: Towards live quantum sensing
论文作者
论文摘要
磁受伤的基础机制长期以来一直在解释。一个流行的假设将这种感觉归因于蛋白质加密构成中自旋反应反应的量子相干自旋动力学。然而，人们对假设的有效性的担忧已被提高为不可避免的自由基相互作用，例如强电子 - 电子偶极偶联，似乎抑制了其敏感性。我们证明，可以通过通过自由基间距离的调制来驱动自旋系统来克服这一点。结果表明，这种动力学过程明显增强了通过单线和三重态之间的Landau-Zener型跃迁在强大的激进对中的地磁场灵敏度。这些发现表明，“现场”和谐驱动的磁受体比其“死”静态对应物更敏感。
The mechanism underlying magnetoreception has long eluded explanation. A popular hypothesis attributes this sense to the quantum coherent spin dynamics of spin-selective recombination reactions of radical pairs in the protein cryptochrome. However, concerns about the validity of the hypothesis have been raised as unavoidable inter-radical interactions, such as strong electron-electron dipolar coupling, appear to suppress its sensitivity. We demonstrate that this can be overcome by driving the spin system through a modulation of the inter-radical distance. It is shown that this dynamical process markedly enhances geomagnetic field sensitivity in strongly coupled radical pairs via a Landau-Zener type transition between singlet and triplet states. These findings suggest that a "live" harmonically driven magnetoreceptor can be more sensitive than its "dead" static counterpart.
