论文标题
基础独立的系统 - 环境连贯性对于检测禽启发的量子磁性传感器中的磁场方向是必要的
Basis-independent system-environment coherence is necessary to detect magnetic field direction in an avian-inspired quantum magnetic sensor
论文作者
论文摘要
促进我们对生物分子络合物中非平凡量子效应的理解需要在生理条件下运行的生物分子络合物，这需要对可能存在于此类系统中可能存在的非经典性的精确表征，并断言是否需要此类特征才能强大功能。在这里，我们考虑了一个由禽类启发的量子磁性传感器，该量子由两个自由基组成，该激进分子在碰撞环境的影响下具有第三个“清道夫”自由基，允许捕获各种腐蚀过程。我们表明，基础独立的连贯性，其中初始系统环境状态是非最大的混合，对于量子磁传感器的最佳性能是必要的，并且在特定情况下似乎足够。我们讨论这种非最大程度混合的初始状态对于多种生物分子情景可能是如何常见的。因此，我们的结果表明，少量的连贯性（无基础）可能是在量子和经典域之间在界面上运行的生物分子系统的量子资源。
Advancing our understanding of non-trivial quantum effects in biomolecular complexes operating in physiological conditions requires the precise characterisation of the non-classicalities that may be present in such systems as well as asserting whether such features are required for robust function. Here we consider an avian-inspired quantum magnetic sensor composed of two radicals with a third "scavenger" radical under the influence of a collisional environment that allows to capture a variety of decoherence processes. We show that basis-independent coherence, in which the initial system-environment state is non-maximally mixed, is necessary for optimal performance of the quantum magnetic sensor, and appears to be sufficient in particular situations. We discuss how such non-maximally mixed initial states may be common for a variety of biomolecular scenarios. Our results therefore suggest that a small degree of coherence--regardless of basis--is likely to be a quantum resource for biomolecular systems operating at the interface between the quantum and classical domains.
