标题： 玻色-爱因斯坦凝聚相变在拉盖尔-高斯激光模式中受限原子的研究 显示英文标题

标题： Bose-Einstein condensation transition studies for atoms confined in Laguerre-Gaussian laser modes

摘要： 多连通陷阱可以固定冷中性原子的量子气体涡旋核心。 由于相位稳定性，拉盖尔-高斯激光模式非常适合此类陷阱。 我们报告了中性原子在由拉盖尔-高斯 LG{p}{l} 光束形成的多连通几何结构中的玻色-爱因斯坦凝聚转变特性及热特性理论计算。 具体来说，我们考虑被限制在调谐到原子共振频率红色的 LG{0}{1} 激光模式的反节点中的原子，以及被限制在蓝频偏移的 LG{1}{1} 光束节点中的原子。 我们将使用完整势能的结果与用简谐振子势近似势能最小值的结果进行比较。 我们发现，对于与典型实验一致的陷阱参数，完整势能计算与简谐振子计算之间的偏差可达 3%-8%。 显示英文摘要

摘要： Multiply-connected traps for cold, neutral atoms fix vortex cores of quantum gases. Laguerre-Gaussian laser modes are ideal for such traps due to their phase stability. We report theoretical calculations of the Bose-Einstein condensation transition properties and thermal characteristics of neutral atoms trapped in multiply connected geometries formed by Laguerre-Gaussian LG{p}{l} beams. Specifically, we consider atoms confined to the anti-node of a LG{0}{1} laser mode detuned to the red of an atomic resonance frequency, and those confined in the node of a blue-detuned LG{1}{1} beam. We compare the results of using the full potential to those approximating the potential minimum with a simple harmonic oscillator potential. We find that deviations between calculations of the full potential and the simple harmonic oscillator can be up to 3%-8% for trap parameters consistent with typical experiments.