光晶格中由相位噪声诱导的加热效应
Phase-Noise-Induced Heating in Optical Lattices
浏览论文内容
中文总结 AI 辅助
该研究通过区分噪声作用，发现相位噪声可成为光晶格中主导加热源，提出基于激光相位噪声功率谱密度的理论框架，其预测能准确复现6Li原子在三角晶格的加热率，且可推广至其他晶格与原子。
中文摘要 AI 辅助
我们结合实验与理论研究光晶格中加热效应的起源，依据晶格参数区分强度噪声与相位噪声各自的作用。尽管强度噪声被广泛认为是主要限制因素，我们证明相位噪声可成为主导加热源，尤其对于轻原子和深光晶格。我们提供一个简单理论框架，可从激光相位噪声的功率谱密度（该参数可实验测量）预测相位噪声诱导的加热效应，且该预测能准确复现6Li原子在三角晶格中测得的加热率。该方法可推广至其他晶格几何结构与原子种类。
英文摘要
We experimentally and theoretically study the origin of heating in optical lattices by disentangling the respective roles of intensity and phase noise depending on the lattice parameters. While intensity noise is widely identified as a major limiting factor, we show that phase noise can become the dominant heating source, especially for light atoms and deep optical lattices. We provide a simple theoretical framework to predict the phase-noise-induced heating from the power spectral density of the laser phase noise, which can be measured experimentally. We show that such predictions can accurately reproduce the measured heating rates of lithium-6 atoms in a triangular lattice. Our approach is readily generalized to other lattice geometries and atomic species.
