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F＋H2化学反应中的Feshbach共振之研究
  • ISSN号：0379-4148
  • 期刊名称：《物理》
  • 时间：0
  • 分类：O381[理学—流体力学;理学—力学] O431.2[机械工程—光学工程;理学—光学;理学—物理]
  • 作者机构：[1]中国科学院大连化学物理研究所分子反应动力学国家重点实验室,大连116023, [2]南京大学化学化工学院理论与计算化学研究所,南京210093
  • 相关基金：国家重点基础研究发展规划（批准号：G1999075300）、国家自然科学基金（批准号：20328304,10574068,20533060和20525313）、中国科学院知识创新工程、中国科学院仪器研制和中国科学院百人计划资助项目.在此我们要非常感谢我们的合作者：邱明辉,任泽峰,车丽,戴东旭,王秀岩,Steve Harich,许传秀,孙志刚,Magnus Gustafsson以及Rex T.Skodje,没有他们的努力,这些工作是无法完成的.
作者： 杨学明[1], 谢代前[2], 张东辉[1]
关键词： FESHBACH共振, 反应共振, 态态反应散射, 反应动力学, 量子干涉效应, Feshbach resonance, reaction resonance, state-to-state reactive scattering, reaction dynamics,quantum interference
中文摘要：

化学反应共振态研究是化学动力学研究的重要前沿课题,对于理解基元化学反应的机理有重要的意义.本文中介绍了最近在这一研究方向的重大进展.通过对F＋H2化学反应的全量子态分辨的分子束反应散射实验研究,观测到了F＋H2中反应中明显的反应共振现象.通过高精度的全量子散射动力学研究,发现这一共振现象是由两个Feshbach共振态所引起的,而且这两个Feshbach共振态之间在前向散射有明显的量子干涉效应.这项研究工作使得我们对这一重要基元反应中的化学反应共振态研究向前迈进了一大步。

英文摘要：

Reaction resonance is a frontier topic in chemical dynamics research, and is also essential to the understanding of mechanisms of elementary chemical reactions. In this short article, we describe an important development in this reaction direction. Experimental evidence of reaction resonances has been detected in a full quantum state resolved reactive scattering study of the F ＋ H2 reaction. Highly accurate full quantum scattering theoretical modeling shows that the reaction resonance is caused by two Feshbach resonance states. Further studies show that quantum interference is present between the two Feshbach resonance states for the forward scattering product. This study is a significant step forward in our understanding of chemical reaction resonances in the benchmark F ＋ H2 system.

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期刊信息
  • 《物理》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：朱星
  • 地址：北京603信箱
  • 邮编：100190
  • 邮箱：physics@aphy.iphy.ac.cn
  • 电话：010-82649470 82649266
  • 国际标准刊号：ISSN：0379-4148
  • 国内统一刊号：ISSN：11-1957/O4
  • 邮发代号:2-805
  • 获奖情况:
  • 2002年中国科协优秀期刊三等奖,2000年度中科院优秀期刊一等奖,2001年入选“中国期刊方阵”,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,英国科学文摘数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,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）,中国北大核心期刊（2000版）
  • 被引量:8902