论文标题
带有悬浮的纳米颗粒的量子机电
Quantum electromechanics with levitated nanoparticles
论文作者
论文摘要
准备和观察纳米级颗粒的量子状态是一项具有挑战性的任务，与量子技术和基本物理的测试非常相关。与具有离散过渡的原子系统相反，纳米颗粒实际上表现出连续的吸收光谱，因此无法轻易操纵其量子动力学。在这里，我们证明了带电的纳米级电介质可以通过将其旋转和翻译运动与超导量子保持一致地接口，可以人为地赋予离散水平的结构。我们提出了一个脉冲方案，用于生成和读取几个悬浮的纳米颗粒之间的运动量子叠加和纠缠，为网络混合量子设备提供了全电动平台。
Preparing and observing quantum states of nanoscale particles is a challenging task with great relevance for quantum technologies and tests of fundamental physics. In contrast to atomic systems with discrete transitions, nanoparticles exhibit a practically continuous absorption spectrum and thus their quantum dynamics cannot be easily manipulated. Here, we demonstrate that charged nanoscale dielectrics can be artificially endowed with a discrete level structure by coherently interfacing their rotational and translational motion with a superconducting qubit. We propose a pulsed scheme for the generation and read-out of motional quantum superpositions and entanglement between several levitated nanoparticles, providing an all-electric platform for networked hybrid quantum devices.
