发表机构
Imperial College London（帝国理工学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究针对双阱悬浮粒子系统，揭示了其隧穿辅助干涉这一独特量子特征，仅通过平均位置振荡即可识别，可同时演示量子隧穿与量子干涉两大现象，为探测悬浮粒子运动的量子特征提供了新探针。
AI 中文摘要
被捕获在双阱势中的悬浮粒子为探索超越简谐区域的量子动力学提供了有前景的平台。我们表明这类系统会呈现出由隧穿辅助干涉产生的独特量子特征。与两个阱互不连通的经典动力学不同，量子情形下量子隧穿使本征态离域到另一个阱中，在相邻本征态间产生非零重叠，从而在粒子平均位置的演化中引入低频分量。通过对比一维双阱势中粒子的量子与经典动力学，我们证明这种干涉是量子特有的，仅通过平均位置的振荡即可识别。我们进一步将观测到的光谱峰与能量本征值的结构关联起来。该效应为探测悬浮粒子运动的量子特征提供了有前景的探针，且具有基础重要性，因为它预测在同一系统上可同时演示量子力学的两大主要现象——量子隧穿与量子干涉。
英文摘要
Levitated particles trapped in double-well potentials provide a promising platform for exploring quantum dynamics beyond the harmonic regime. We show that such systems exhibit a distinctive quantum signature arising from tunneling-assisted interference. Unlike classical dynamics, where the two wells are disconnected, in the quantum case, quantum tunneling enables eigenstates to delocalize into the other well, creating nonzero overlaps between adjacent eigenstates that introduce low-frequency components into the evolution of the mean particle position. By comparing quantum and classical dynamics of particles in one-dimensional double-well potentials, we demonstrate that this interference is uniquely quantum and can be identified through the oscillation of the average position alone. We further relate the observed spectral peaks to the structure of the energy eigenvalues. The effect provides a promising probe of the quantum signature of levitated particle motion, and has fundamental importance as it predicts the demonstration of two major phenomena of quantum mechanics, quantum tunneling and quantum interference, at the same time and on the same system.
Comments4 pages, 5 figures, comments welcome
