论文标题
自旋交换碰撞对热碱金属蒸气波动光谱的影响
Effects of spin-exchange collisions on the fluctuation spectra of hot alkali-metal vapors
论文作者
论文摘要
我们介绍了对碱金属蒸气的噪声光谱进行的第一原理分析，无自旋交换 - 淘汰 - 无解释性（SERF）制度，我们预测非直觉特征有可能进一步提高SELF介质的敏感性，并且必须在量子光学光学量的效果中考虑到其用途。研究自旋光谱法（SNS）的过程，我们得出了可观察到的噪声光谱的分析公式，以及不同高精细分量之间的相关功能，从而提供了对自旋动力学的更多见解。分析结果表明，相对于较简单模型的自旋噪声光谱的各种扭曲，包括模仿光学射击噪声的广泛背景，两个地面超精细水平的噪声贡献的干扰，降低自旋优势频率下的噪声频率以及“隐藏式”的功能，可以在噪声中引入calibirations calibirations E.G中的calibim in e.g，以实现。
We present a first-principles analysis of the noise spectra of alkali-metal-metal vapors in and out of the spin-exchange-relaxation-free (SERF) regime, and we predict non-intuitive features with a potential to further improve the sensitivity of SERF media, and which must be taken into account in their use in quantum optical applications. Studying the process of spin-noise spectroscopy (SNS), we derive analytic formulas for the observable noise spectra, and for the correlation functions among different hyperfine components, which give additional insight into the spin dynamics. The analytic results indicate a variety of distortions of the spin-noise spectrum relative to simpler models, including a broad spectral background that mimics optical shot noise, interference of noise contributions from the two ground-state hyperfine levels, noise reduction at the spin-precession frequency, and ``hiding'' of spin-noise power that can introduce a systematic error in noise-based calibrations, e.g., for spin-squeezing experiments.
