Seminar Khoa học
Bộ môn Vật lí Đại cương trân trọng kính mời quý thầy cô, nghiên cứu sinh, học viên cao học và các bạn sinh viên quan tâm tới dự seminar Khoa học:
The molecular dynamic simulation method- a potential tool for spectral line shape study
Người trình bày: TS. Lê Công Tường
Thời gian: 15h00, thứ 3 ngày 23/6/2020
Địa điểm: Phòng 222 Khoa Vật lí, Trường Đại học Sư phạm Hà Nội
Re-quantized classical molecular dynamics simulation (rCMDS) has been shown as a powerful tool to predict the infrared absorption line shapes of various molecule systems. Comparisons between the rCMDS calculated and experimental spectra of several lines for different linear molecules (such as CO2, O2 and HCl) measured in a large pressure range showed very good agreements. This method was also successfully applied to non-linear molecules as for the case of pure H2O, H2O in N2. Note that the rCMDS correctly predicts non-Voigt features of the line shape but it does a poorer job for the pressure-broadening coefficients, especially for the case of CH4 diluted in N2.
The main purpose of this report is to give an overview of using the re-quantized classical molecular dynamics simulation for molecular spectral shape study, especially focusing on some works of our group at the Faculty of Physics, Hanoi National University of Education. Some discussions and comments about advantages and disadvantages of using this method as well as our soon future works are also included.