Metastable and scattering states of a diatomic beryllium molecule

V. L. Derbov; G. Chuluunbaatar; A. A. Gusev; O. Chuluunbataar; S. I. Vinitsky; A. Góźdź; P. M. Krassovitskiy; I. Filikhin; A. V. Mitin

doi:10.1117/12.2585634

4 May 2021 Metastable and scattering states of a diatomic beryllium molecule

V. L. Derbov, G. Chuluunbaatar, A. A. Gusev, O. Chuluunbataar, S. I. Vinitsky, A. Góźdź, P. M. Krassovitskiy, I. Filikhin, A. V. Mitin

Author Affiliations +

Proceedings Volume 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling; 118460Y (2021) https://doi.org/10.1117/12.2585634
Event: Saratov Fall Meeting 2020, 2020, Saratov, Russian Federation

Abstract

The calculations of vibration-rotation bound states and new metastable states of a diatomic beryllium molecule important for laser spectroscopy are presented. The problem is solved using the potential curve and the authors' software package that implements the iteration Newton method and the high-accuracy finite element method. The efficiency of the proposed approach is demonstrated by calculating vibration-rotation bound states and, for the first time, rotation-vibration metastable states with complex- valued energy eigenvalues (with negative imaginary parts of the order of (10^-20 ÷ 6) cm^-1) in a diatomic beryllium molecule. The existence of these metastable states is confirmed by calculating the corresponding scattering states with real-values resonance energies.

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V. L. Derbov, G. Chuluunbaatar, A. A. Gusev, O. Chuluunbataar, S. I. Vinitsky, A. Góźdź, P. M. Krassovitskiy, I. Filikhin, and A. V. Mitin "Metastable and scattering states of a diatomic beryllium molecule", Proc. SPIE 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling, 118460Y (4 May 2021); https://doi.org/10.1117/12.2585634

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