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Chinese Journal of Chemical Physics 2006年第6期19卷 469-472页

作者：李健李永庆王伟丽马凤才辽宁大学物理系沈阳110036 辽宁工程技术大学理学院阜新123000

Here wc report calculation of the differential interference angles （including b≤p gild b≥p ） for singlet-triplet mixed states of Na2（A^1∑u^＋,ν=8-b^3∏0u,ν=14） system in collision with Na, in order to study the collision- induced quantum interference on rotational energy transfer in an atom-diatom system. The calculation is based on the first-order Born approximation of time-dependent perturbation theory, and the anisotropic Lennard-Jones intcraction potentials are also employed, The relationships between differential interference angle and impact parameter, including collision diameter and velocity, are obtained,

关键词： Rotational energy transfer Collision induced quantum interference interference angle

The differential interference angle of ~2Π [Case(a)] diatom on rotational energy transfer in NO (X^2Π ) collision with He,Ne and Ar system

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Chinese Physics B 2008年第10期17卷 3649-3654页

作者：李永庆李健赵丽娜倪艳清马凤才 Department of Physics Liaoning University Departamento de Qu?mica Universidade de Coimbra Department of Science Shenyang Institute of Aeronautical Engineering Center for Science and Technology Experiment Bohai University

To study theoretically the relationship between the differential interference angle and the scattering angle in collisional quantum interference （CQI）, we have investigated the differential interference angle of the atom-diatomic [case（a）] molecule system in detail. For the 2∏ electronic state in Hund＇s case （a）, the degree of the differential interference is also discussed. The differential interference angles of NO（X^2∏） are calculated quantitatively for the rotational energy transfer in Hund＇s case （a） induced by collision with He, Ne and Ar atoms. The method to calculate the differential interference angle is presented. Several factors that affect the differential interference angle are investigated. Finally the variation of the differential interference angle with the impact parameter and relative velocity is discussed.

关键词： collisional quantum interference rotational energy transfer interference angle longrange interaction potential

Collisional Quantum interference on Rotational Energy Transfer： Relation Between Integral interference angle and Rotational Quantum Number in Na2（A^1∑u^＋,ν=8～b^3∏0u,ν=14）-Na System

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Communications in Theoretical Physics 2006年第1X期46卷 123-129页

作者： WANG Wei-Li SONG Peng LI Yong-Qing MIAO Gang MA Feng-Cai School of Science Liaoning Technical University Fuxin 123000 China Dalian Institute of Chemical Physics the Chinese Academy of Sciences Dalian 16023 China Department of Physics Liaoning University Shenyang 110036 China

Collisional quantum interference （CQI） on rotational energy transfer was observed in Na2（A^1∑u^＋,ν=8～b^3∏0u,ν=14） system in collision with Na [Chem. Phys. Lett. 318 （2000） 107], and the degree of the interference was measured. The integral interference angle was obtaJned through theoretical calculation. We will research the factors that have effect on collisional quantum interference on rotational energy transfer in Na2（A^1∑u^＋,ν=8～b^3∏0u,ν=14）-Na system. Basing on the time-dependent first order Born approximation, and taking into account the anlsotroplc Lennard Jones interaction potentials and ＂straight-line＂ trajectory approximation, we obtain the factors that have effect on CQI in Na2-Na system, and obtain the relation between the integral interference angle and rotational quantum number.

关键词： rotational energy transfer interference angle rotational quantum number

Collisional quantum interference on rotational energy transfer： physical interpretation of the differential interference angle

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Chinese Physics B 2006年第12期15卷 2920-2927页

作者：李永庆李健马凤才 Department of Physics Liaoning University Shenyang 110036 China

Collisional quantum interference （CQI） on the intramolecular rotational energy transfer is observed in an experiment with a static cell, and the integral interference angles are measured. To obtain more accurate information, an experiment with a molecular beam is carried out, and thereby the relationship between the differential interference angle and the scattering angle is obtained. Based on the first-Born approximation of time-dependent perturbation theory, the theoretical model of CQI is developed in an atom-diatom system in the condition of the molecular beam, with the long-range interaction potential taken into account. The method of measuring correctly the differential interference angle is presented. The tendencies of the differential interference angle changing with the impact parameter and rel- ative velocity are discussed. The theoretical model presented here is important for understanding or performing the experiment in the molecular beam.

关键词： collisional quantum interference rotational energy transfer interference angle longrange interaction potential

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Chinese Journal of Chemical Physics 2009年第1期22卷 13-18页

作者： Jian Li Yan-qing Ni Yong-qing Li Wei-li Wang Feng-cai Ma Department of Science Shenyang Institute of Aeronautical Engineering Shenyang 110036 China Department of Physics Liaoning University Shenyang 110036 China Department of chemistry University of Coimbra 3004-535 Coimbra Portugal School of Science Liaoning Technical University Fuxin 123000 China

To study theoretically the relationship between the integral interference angle and the scat- tering angle in collisional quantum interference, the integral interference angle of atom- ^2П[case（a）] diatomic molecules system is described. To simulate the experiment theoretically, the theoretical model on collision-induced rotational energy transfer in an atom- ^2П[case（a）]diatom system is presented based on the first order Born approximation taking into account of the long-range interaction potential. For the ^2П electronic state in the Hund＇s case（a） diatom, the degree of the interference is discussed. The interference angles of collision-induced rotational energy transfer of CN（A^2П） in Hund＇s case（a） with He, Ne, and Ar are calculated quantitatively. The key parameters in the determination of integral interference angles are obtained.

关键词： Collisional quantum interference Rotational energy transfer interference angle

Further Study of A-Related Quantum interference of H-State Diatomic on Collision-Induced Rotational Energy Transfer

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Communications in Theoretical Physics 2005年第2X期44卷 347-352页

作者： LI Yong-Qing SONG Peng CHEN Yue-Hui WANG Wei-Li MA Feng-Cai Department of Physics Liaoning University Shenyang 110036 China

In our previous theoretical studies [Meng-Tao Sun, Yong-Qing Lee, and Feng-Cai Ma, Chem. ***. 371 （2003） 342], we have reported the quantum interference on collision-induced rotational energy transfer on CO （A ^1 Π,v = 3） with inert gases, which originates from the difference between the two A-related collision potential energy surfaces. The interference angle, which measures the degree of coherence, is presented in this paper. Based on the time-dependent first order Born approximation, taking into account the anisotropic Lennard-Jones interaction potentials, the relation of the interference angle with the factors, including experimental temperature, partner, and rotational quantum number, are obtained. The changing tendencies with them are discussed. This theoretical model is important to understanding and performing this kind of experiment.

关键词： quantum interference rotational energy transfer interference angle

Collision-induced Rotational Energy Transfer in an Atom-Diatom System

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Chinese Journal of Chemical Physics 2008年第5期21卷 457-462页

作者： Yan-qing Ni Jian Li Feng-cai Ma Department of Physics Liaoning University Shenyang 110036 China Department of Science Shenyang Institute of Aeronautical Engineering Shengyang 110036 China

As a further theoretical study of the collision-induced quantum interference on rotational energy transfer in an atom-diatom system, based on the first-Born approximation of time-dependent perturbation theory, taking into account the anisotropic Lennard-Jones interaction potential and the long-range interaction potential, the differential interference angles in singlet-triplet mixed states of CO A^1Π（v=9）-e3∑-（v=1） system in collision with He, Ne, Ar, and other partners were calculated theoretically. The relationships of differential interference angle versus impact parameters, including collision parameter b and velocity, are obtained.

关键词： Rotational energy transfer Collision-induced quantum interference interference angle

Comparison of Wheelbase Filtering Effect and Suspension Tuning Between Two-axle and Tri-axle Vehicle with Tandem Suspension

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Comparison of Wheelbase Filtering Effect and Suspension Tuni...