标题： 宽动态范围磁场循环器：在低场和高场下利用量子控制 显示英文标题

标题： Wide dynamic range magnetic field cycler: Harnessing quantum control at low and high fields

摘要： 我们描述了一种快速场循环装置的构建，该装置能够在700毫秒内扫过从约1mT到7T的四阶量级磁场范围。 该系统的核心是一个在超导磁体和磁屏蔽之间高速样品输送机制，能够以高分辨率访问之间的任意磁场。 我们的仪器作为一个多功能平台，利用低场和高场下自旋动力学的固有二元性——特别是低各向异性、快速自旋操控和低场下的快速纠缠增长，以及高场下可能实现的长自旋寿命、自旋特异性控制和高效的感应测量。 在单一设备中利用这些互补功能，除了在核超极化、弛豫度量和成像中的应用外，还为量子控制、传感和信息存储等诸多问题提供了应用前景。 特别是，在本文中，我们关注该设备通过与氮空位（NV）缺陷中心相关的光学泵浦电子自旋，使金刚石中的13C核实现低场超极化的功能。 显示英文摘要

摘要： We describe the construction of a fast field cycling device capable of sweeping a 4-order-of-magnitude range of magnetic fields, from ~1mT to 7T, in under 700ms. Central to this system is a high-speed sample shuttling mechanism between a superconducting magnet and a magnetic shield, with the capability to access arbitrary fields in between with high resolution. Our instrument serves as a versatile platform to harness the inherent dichotomy of spin dynamics on offer at low and high fields - in particular, the low anisotropy, fast spin manipulation, and rapid entanglement growth at low field as well as the long spin lifetimes, spin specific control, and efficient inductive measurement possible at high fields. Exploiting these complementary capabilities in a single device open up applications in a host of problems in quantum control, sensing, and information storage, besides in nuclear hypepolarization, relaxometry and imaging. In particular, in this paper, we focus on the ability of the device to enable low-field hyperpolarization of 13C nuclei in diamond via optically pumped electronic spins associated with Nitrogen Vacancy (NV) defect centers.