论文标题
朝着声学频率硅膜的无腔底态冷却
Towards cavity-free ground state cooling of an acoustic-frequency silicon nitride membrane
论文作者
论文摘要
我们使用Michelson干涉仪展示了从室温到5 MK到5 MK（3000个声子）的40 kHz SIN膜的反馈冷却，并讨论没有光腔的基态冷却的挑战。这一前进出现在当前的膜技术的范围内，将其定位为用于量子传感和基本弱力测量的悬浮系统的引人注目的替代方案。
We demonstrate feedback cooling of a millimeter-scale, 40 kHz SiN membrane from room temperature to 5 mK (3000 phonons) using a Michelson interferometer, and discuss the challenges to ground state cooling without an optical cavity. This advance appears within reach of current membrane technology, positioning it as a compelling alternative to levitated systems for quantum sensing and fundamental weak force measurements.
