Time-of-flight measurement of the temperature of cold atoms for short trap-probe beam distances
Time-of-flight measurement of the temperature of cold atoms for short trap-probe beam distances
复制标题
DOI：
10.1088/1464-4266/4/1/310
复制
发表时间：
2002-02-01
期刊：
影响因子：
--
通讯作者：
Gawlik, W
中科院分区：
文献类型：
--
作者：
Brzozowski, TM;Maczynska, M;Gawlik, W
我们分析了在探测光束距陷阱中心距离较短且原子云尺寸有限的具体情况下测量冷捕获原子温度的飞行时间方法。我们从理论上考察了探测光束形状及其距云初始位置的距离对温度评估的影响。然后通过三维蒙特卡罗模拟验证这些结果，并将其应用于我们的实验数据，以表明所提出的程序可以准确可靠地确定温度。
We analyse the time-of-flight method of measuring the temperature of cold trapped atoms in the specific case of short distances of the probe beam from the trap centre and finite atomic cloud size. We theoretically examine the influence of the probe beam shape and its distance from the initial position of the cloud on the temperature evaluation. These results are then verified with a three-dimensional Monte Carlo simulation and applied to our experimental data to show that the proposed procedure allows accurate and reliable determination of the temperature.