摘要
提出一种利用三根载荷金属杆来实现在芯片表面陷俘冷极性分子的静电阱.给出空间静电场等高线分布.通过调节电极电压操控阱中心距离芯片表面的高度.用经典的蒙特卡罗方法模拟冷分子被装载和囚禁的动力学过程.方案对中心速度为11 m·s-1的冷分子束,最大装载效率可以达到40%,阱中分子的温度大约为25 mK.方案可以进一步微型化、集成化,形成一维和二维静电微阱阵列,在量子计算、低维物理等方面有应用价值.
An electrostatic surface trap for cold polar molecules with three charged poles is proposed.Distance between trap center and chip surface can be manipulated conveniently by altering voltages applied to the poles.Dynamic process of loading and trapping is simulated with classic method of Monte Carlo.It indicates that a loading efficiency of 40%for ND3 molecular beam with middle velocity of 11 m·s-1 is reached.Corresponding temperature of trapped molecules is about 25 mK.Our scheme can be further miniaturized and integrated to form one-dimensional and two-dimensional microtrap arrays which can be used in quantum computing and low-dimensional physics research.
作者
吴言
刘思琪
李胜强
WU Yan;LIU Siqi;LI Shengqiang(School of New Energy and Electronic Engineering,Yancheng Teachers University,Yancheng 224007,Jiangsu,China)
出处
《计算物理》
EI
CSCD
北大核心
2019年第4期483-490,共8页
Chinese Journal of Computational Physics
基金
国家自然科学基金青年科学基金(11504318)
江苏省大学生创新创业项目(201710324001Y)资助
