通过粘合单个量子系统实现介观力学叠加
Mesoscopic mechanical superpositions by gluing individual quantum systems
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中文总结 AI 辅助
该研究提出通过将单电子时间-bin态附着于光悬浮纳米粒子表面制备介观量子叠加的方案，短时间内相干性可存续，能通过改变电子相位观测，利用光子干涉测量检测条纹，无需相干态扩展等机制，为测试量子力学提供新途径。
中文摘要 AI 辅助
我们提出了一种制备机械薛定谔小猫（光悬浮纳米粒子相干运动状态的介观量子叠加）的方案，即通过将单电子时间-bin态附着于其表面。在短时间尺度内，介观叠加的相干性在困扰悬浮系统的主要退相干机制下得以存续，可通过改变时间-bin电子的相位来观测。利用从粒子散射的光子进行实时、近海森堡极限干涉测量可检测到干涉条纹。此方法无需相干态扩展、暗势和粒子释放-再捕获机制，为在前所未有的尺度上测试量子力学提供了新途径。
英文摘要
We propose a protocol for preparing mechanical Schrödinger kittens -- mesoscopic quantum superpositions of coherent motional states of an optically levitated nanoparticle -- by adhering single electron time-bin states to its surface. Over short protocol timescales, coherence of the mesoscopic superposition survives the dominant decoherence mechanisms afflicting levitated systems, and can be observed by varying the phase of the time-bin electrons. Interference fringes can be detected with real-time, near-Heisenberg limited interferometry of photons scattered from the particle. This approach eliminates the need for coherent state expansion, dark potentials, and particle release-and-recapture mechanisms, providing a new route to test quantum mechanics in unprecedented scales.
