arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.2383quant-phq-bio.BM
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化学罗盘中的量子控制和纠缠

Quantum control and entanglement in a chemical compass

Jianming Cai, Gian Giacomo Guerreschi, Hans J. Briegel

摘要:

自由基对机制是解释动物在弱磁场中的导航能力的两个主要假设之一,使鸟类能够看到地球的磁场。它在自旋化学领域也起着重要作用。在这里,我们展示了量子控制如何用于增强或降低这样的化学罗盘的性能,为进一步研究自由基对机制及其应用提供了新的途径。我们研究了量子纠缠在这个机制中的作用,并证明了径向对纠缠和指南针的磁场灵敏度之间有趣的联系。除了直接应用于自由基对机制之外,这些结果还展示了最先进的量子技术如何可能用于探测和控制生物功能。

英文摘要:

The radical pair mechanism is one of the two main hypotheses to explain the navigability of animals in weak magnetic fields, enabling e.g. birds to see the Earth's magnetic field. It also plays an essential role in the field of spin chemistry. Here, we show how quantum control can be used to either enhance or reduce the performance of such a chemical compass, providing a new route to further study the radical pair mechanism and its applications. We study the role of quantum entanglement in this mechanism, and demonstrate intriguing connections between radical-pair entanglement and the magnetic field sensitivity of the compass. Beyond their immediate application to the radical pair mechanism, these results also demonstrate how state-of-the-art quantum technologies could potentially be used to probe and control biological functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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