利用单分子磁体中的磁雪崩实现量子探测
Quantum Detection using Magnetic Avalanches in Single-Molecule Magnets
摘要：
以高效率和低误报率检测单个量子能量具有相当大的科学兴趣，从用作光学和红外光子的单个量子传感器到使得能够直接检测低质量暗物质。我们报告的第一个实验演示的量子散射引起的磁雪崩在单分子磁铁（SMM）晶体Mn 12-醋酸盐，建立使用SMM作为粒子探测器的第一次。虽然目前的设置有一个能量阈值在兆电子伏制度，我们的研究结果激励探索各种各样的SMM，其属性可以允许检测亚电子伏的能量沉积。
英文摘要：
The detection of a single quantum of energy with high efficiency and low false positive rate is of considerable scientific interest, from serving as single quantum sensors of optical and infra-red photons to enabling the direct detection of low-mass dark matter. We report the first experimental demonstration of magnetic avalanches induced by scattering of quanta in single-molecule magnet (SMM) crystals made of Mn12-acetate, establishing the use of SMMs as particle detectors for the first time. While the current setup has an energy threshold in the MeV regime, our results motivate the exploration of a wide variety of SMMs whose properties could allow for detection of sub-eV energy depositions.
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