Analysis of Multipolar Linear Paul Traps for Ion–Atom Ultracold Collision Experiments
Analysis of Multipolar Linear Paul Traps for Ion–Atom Ultracold Collision Experiments
复制标题
离子-原子超冷碰撞实验的多极线性保罗陷阱分析
作者：
M. Niranjan;A. Prakash;S. Rangwala
我们评估的多极，线性保罗陷阱的性能研究冷离子原子碰撞的目的。结合数值模拟和分析的维里定理的基础上得出的结论，结果的差异，考虑几个多极陷阱类型的捕获细节。从一个充分补偿，超冷囚禁离子和一个静止的原子之间的低能碰撞如何发生的分析，我们表明，高阶多极阱，在原则上，有利的碰撞加热。随后，沿着计算了四极、六极、八极和十极射频阱中捕获离子的轨迹，对多极阱进行了维里分析。被困离子的运动的振幅，相位和离子的运动的稳定性的函数的详细分析是用来评估这种陷阱的实验前景。本分析的优点是使用第一原理为各种配置的优点提供了明确的答案。
We evaluate the performance of multipole, linear Paul traps for the purpose of studying cold ion–atom collisions. A combination of numerical simulations and analysis based on the virial theorem is used to draw conclusions on the differences that result, by considering the trapping details of several multipole trap types. Starting with an analysis of how a low energy collision takes place between a fully compensated, ultracold trapped ion and an stationary atom, we show that a higher order multipole trap is, in principle, advantageous in terms of collisional heating. The virial analysis of multipole traps then follows, along with the computation of trapped ion trajectories in the quadrupole, hexapole, octopole and do-decapole radio frequency traps. A detailed analysis of the motion of trapped ions as a function of the amplitude, phase and stability of the ion’s motion is used to evaluate the experimental prospects for such traps. The present analysis has the virtue of providing definitive answers for the merits of the various configurations, using first principles.
DOI：
10.1088/1361-6455/ab7d24
发表时间：
2019-01
期刊：
Journal of Physics B: Atomic, Molecular and Optical Physics
影响因子：
--
作者：
Limei Wang;M. Deiss;G. Raithel;J. Denschlag
通讯作者：
Limei Wang;M. Deiss;G. Raithel;J. Denschlag
影响因子：
8.6
作者：
Dieterle, T.;Berngruber, M.;Meinert, F.
通讯作者：
Meinert, F.