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超低温下钠原子散射特性研究
  • ISSN号：1000-0364
  • 期刊名称：《原子与分子物理学报》
  • 时间：0
  • 分类：O562.5[理学—原子与分子物理;理学—物理]
  • 作者机构：[1]河南师范大学物理与信息工程学院,新乡453007, [2]洛阳师范学院物理与电子科学系,洛阳471022
  • 相关基金：国家自然科学基金（10574039）
作者： 张计才[1], 孙金锋[1,2], 王杰敏[1]
关键词： 散射长度, 弹性散射截面, Numerov法, 形状共振, scattering length,elastic cross section,Numero v method,shape resonance
中文摘要：

超低温下钠原子的散射特性对原子间的相互作用势非常敏感.本文基于构造精确的原子间相互作用势,详细研究了在超冷温度下处在超精细态｜F=2,mF=2〉下^23Na原子的弹性散射特性.我们分别用Numerov和半经典方法计算了散射长度和有效程,得到了较满意的结果.低能散射截面有丰富的共振现象产生,我们发现并给出了d-波和g-波形状共振的能级位置和共振宽度;此外,我们还对仅两个分波有贡献情况下的微分散射截面进行了理论计算.

英文摘要：

The calculations of the elastic scattering properties for collisions between two 23^ Na atoms at ultracold temperatures are reported and compared with experimental and theoretical results in the detail.We present a parametric model potential for the triplet molecular state of the 23 ^Na molecule,and calculate the scattering length at and the effective range re by using the semiclassical and Numerov methods,respectively.The shape resonances occur in the collisions at low energies,and resonance positions and widths are computed by Briet Wigner formula.In addition,we also present other results that include differential cross sections at zero energy limit.

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期刊信息
  • 《原子与分子物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:四川省科学技术协会
  • 主办单位:中国物理学会 原子与分子物理专业委员会 四川省物理学会 四川大学
  • 主编：芶清泉
  • 地址：成都市一环路南一段24号
  • 邮编：610065
  • 邮箱：yzyf@chinajournal.net.cn
  • 电话：028-85405516
  • 国际标准刊号：ISSN：1000-0364
  • 国内统一刊号：ISSN：51-1199/O4
  • 邮发代号:62-54
  • 获奖情况:
  • 四川省高等学校优秀期刊,四川省科技期刊优秀期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,日本日本科学技术振兴机构数据库,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,英国英国皇家化学学会文摘,中国北大核心期刊（2000版）
  • 被引量:4084