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arXiv quant-ph/0105048quant-ph
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一个光学万花筒使用一个单一的原子

An optical kaleidoscope using a single atom

P. Horak, H. Ritsch, T. Fischer, P. Maunz, T. Puppe, P. W. H. Pinkse, G. Rempe

摘要:

本文介绍了一种在高精细度光学谐振腔中跟踪单个粒子运动的新方法。它利用近简并高阶高斯腔模式,其对称性被粒子引起的光的相移破坏。观察腔体后面的空间强度分布允许以近似波长的精度直接确定粒子的位置。这是通过使用包括摩擦和扩散的半经典模拟生成真实的原子轨迹并将其与重建的路径进行比较来证明的。路径重建本身不需要关于粒子上的力的知识。

英文摘要:

A new method to track the motion of a single particle in the field of a high-finesse optical resonator is described. It exploits near-degenerate higher-order Gaussian cavity modes, whose symmetry is broken by the phase shift on the light induced by the particle. Observation of the spatial intensity distribution behind the cavity allows direct determination of the particle's position with approximately wavelength accuracy. This is demonstrated by generating a realistic atomic trajectory using a semiclassical simulation including friction and diffusion and comparing it to the reconstructed path. The path reconstruction itself requires no knowledge about the forces on the particle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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