论文标题
通过光电位控制，纳米颗粒的快速量子干扰
Fast Quantum Interference of a Nanoparticle via Optical Potential Control
论文作者
论文摘要
我们介绍并理论上分析了一种方案，以通过与产生立方体和倒置电势的光脉冲相互作用来制备和检测光学上悬浮粒子的非高斯量子状态。我们表明，这允许在短时间和长度尺度上运行，从而大大降低了此类实验中对矫正率的需求。具体而言，我们的方案可以预测，质量高于$ 10^8 $原子量单位的纳米颗粒的干扰在几种纳米上，在毫秒的时间尺度上，在真空水平上运行$ 10^{-10} $ 〜MBAR和室温。我们讨论了使用这种方法相干地使用投影测量和内部水平结构的大规模介电对象的波袋。
We introduce and theoretically analyze a scheme to prepare and detect non-Gaussian quantum states of an optically levitated particle via the interaction with a light pulse that generates cubic and inverted potentials. We show that this allows operating on short time- and lengthscales, which significantly reduces the demands on decoherence rates in such experiments. Specifically, our scheme predicts the observation of interference of nanoparticles with a mass above $10^8$ atomic mass units delocalised over several nanometers, on timescales of milliseconds, when operated at vacuum levels around $10^{-10}$~mbar and at room temperature. We discuss the prospect of using this approach for coherently splitting the wavepacket of massive dielectric objects using neither projective measurements nor an internal level structure.
