AI 中文总结
该研究针对受Feshbach共振耦合且含高斯白噪声的原子-分子双模BEC，采用玻色约瑟夫森结等形式，分析噪声对相干共振点的影响，发现噪声特征时间匹配本征尺度时会使时间平均纯度等出现极值。
AI 中文摘要
我们研究了通过Feshbach共振耦合的原子-分子玻色-爱因斯坦凝聚体的非平衡动力学，其中高斯白噪声作用于耦合强度和失谐量。利用玻色约瑟夫森结和布洛赫球形式，我们考察了相干（耦合）噪声和不平衡（失谐）噪声如何随初始极化和Feshbach失谐量改变相干共振点。当噪声的特征时间尺度与动力学的本征时间尺度匹配时，噪声会起到更具相干性的作用，导致时间平均纯度和Husimi-Q分布出现极值。
英文摘要
We investigate the non-equilibrium dynamics of atomic-molecular Bose-Einstein condensates coupled via a Feshbach resonance, with Gaussian white noise acting on both the coupling strength and the detuning. Using the bosonic Josephson-junction and Bloch-sphere formalisms, we examine how coherence (coupling) noise and imbalance (detuning) noise modify the coherence-resonance point as functions of the initial polarization and the Feshbach detuning. Noise plays a more coherent role when its characteristic timescale matches the intrinsic timescales of the dynamics, leading to extrema in the time-averaged purity and the Husimi-Q distribution.
Comments12 pages, 8 figures, and 4 tables
