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Citation: LI Yong-Qing, LI Jian, SONG Peng, MA Feng-Cai. The Differential Interference Angle of Λ-Related Quantum Interference of ¹Π-state Diatom[J]. Acta Physico-Chimica Sinica, ;2006, 22(05): 602-607. doi: 10.3866/PKU.WHXB20060517 shu

The Differential Interference Angle of Λ-Related Quantum Interference of ¹Π-state Diatom

1.
Department of Physics, Liaoning University, Shenyang 110036, P. R. China; State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China

Received Date: 30 November 2005
Available Online: 28 April 2006

Collisional quantum interference (CQI) on rotational energy transfer was observed by Sha et al.(J. Chem.Phys., 1995, 102：2772) in static cell, and the integral interference angle which determines the magnitudes of the transition cross sections was measured. To obtain more precise information, the experiment in the molecular beam should be taken, as the integral interference angle is the average effect of the differential interference angle. Thedifferential interference angle of Λ-Related Quantum Interference of ¹Π-state diatom was presented to measure the degree of coherence, by using the first order Born approximation of time-dependent perturbation theory. The anisotropic Lennard-Jones interaction potential is employed to simulate their interference angles. The relationships of the differential interference angle versus the factors of the experiment in the molecular beam, including experimental temperature, partners, the distance of the interaction and rotational quantum number, are obtained. And the various factors that influen ce the interference angles are discussed. This theoretical model is important to understand orperformin the experiment of the molecular beam.
- Quantuminterference;Collision-induced rotational energy transfer;Differential interference angle;Anisotropic Lennard-Jones interaction potential;Experiment of the molecular beam
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通讯作者: 陈斌, bchen63@163.com

The Differential Interference Angle of Λ-Related Quantum Interference of ¹Π-state Diatom