Quantum physics of He near the double ionization threshold-quantum chaos and Wannier threshold law
Quantum physics of He near the double ionization threshold-quantum chaos and Wannier threshold law
批准号:
0555052
负责人:
Chii Dong Lin
金额:
$0.0万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2006
资助国家:
美国
项目状态:
已结题
起止时间:
2006-05-01 至 2010-04-30
中文摘要
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英文摘要
The proposed research includes three topics.The first is to study the level statistics of He and other atoms in relation to the questions of quantum chaos. The second is the study of the photoabsorption spectra of He in the energy region lying between the N=10-25 thresholds of He+. Until now both the theoretical and experimental investigations for the photoabsorption of He have been limited to about the N=9 threshold of He+. This energy region will become accessible as more intense light sources such as those from free electron XUV and soft-X-ray lasers come on line in a few years. Questions such as whether the photoabsorption spectra will exhibit Erickson fluctuations in the quantum chaos regime will be investigated. The third topic concerns the absolute double photoabsorption cross sections of He for energies near the double electron escape threshold. Calculations will be undertaken from about a few meV above the threshold to test the Wannier threshold law. No full ab inito calculations as yet have been able to probe the energy region within about 1 eV above the threshold.
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会议论文
Undergraduate Summer Research in Experimental and Theoretical Atomic Physics
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批准号:9300250
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项目类别:Continuing Grant
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资助金额:$22.68万
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财政年份:1993
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负责人:Chii Dong Lin
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依托单位:
AIT (U.S.)-CCNAA (Taiwan) Cooperative Research: Theoretical Studies of Strongly Correlated Atomic Systems and Atoms in Strong Fields
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批准号:9221619
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项目类别:Standard Grant
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资助金额:$3.17万
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财政年份:1993
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负责人:Chii Dong Lin
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依托单位:
Undergraduate Summer Research in Experimental and Theoretical Atomic Physics
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批准号:9123762
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项目类别:Standard Grant
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资助金额:$5.09万
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财政年份:1992
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负责人:Chii Dong Lin
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依托单位:
US-China Cooperative Research: Atomic Processes In Muon- Catalyzed Fusion
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批准号:8913616
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项目类别:Standard Grant
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资助金额:$3.52万
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财政年份:1990
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负责人:Chii Dong Lin
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依托单位:
U.S.-Argentina Cooperative Research: Theoretical Studies ofRearrangement Processes in Ion-Atom & Ion-Molecular Collision
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批准号:8914531
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项目类别:Standard Grant
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资助金额:$1.58万
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财政年份:1990
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负责人:Chii Dong Lin
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依托单位:
U.S.-Japan Cooperative Research: Theoretical Investigations of Correlation in Few-Body Atomic Collisions
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批准号:8914372
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项目类别:Standard Grant
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资助金额:$1.77万
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财政年份:1990
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负责人:Chii Dong Lin
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依托单位:
US-Japan Collaborative Research: Theoretical Investigation of Rearrangement and Direct Processes Involving Multiply Charged Ions
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批准号:8515294
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项目类别:Standard Grant
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资助金额:$3.01万
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财政年份:1986
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负责人:Chii Dong Lin
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依托单位:
国内基金
海外基金
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