Application of the non-Hermitean effective Hamiltonian method to metastable van der Waals complexes

Alexei A. Buchachenko; T. Yu. Mikhailova; V. I. Pupyshev; N. F. Stepanov

doi:10.1117/12.267801

3 March 1997 Application of the non-Hermitean effective Hamiltonian method to metastable van der Waals complexes

Alexei A. Buchachenko, T. Yu. Mikhailova, V. I. Pupyshev, N. F. Stepanov

Proceedings Volume 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy; (1997) https://doi.org/10.1117/12.267801
Event: 12th Symposium and School on High Resolution Molecular Spectroscopy, 1996, St. Petersburg, Russian Federation

Abstract

The model based on the effective non-hermitean Hamiltonian is implemented for studying spectrum of the vibrational metastable states of the Ne. . .I₂ van der Waals complex. The non-trivial behavior of the resonance positions at high vibrational excitations of the I₂ fragment is explained by the intramolecular vibrational energy redistribution through intermediate resonance states. The interference effects in the resonance spectrum are elucidated by a comparative analysis of models with different choices of the active space in the Feshbach partitioning technique. It is shown that the real part of the optical potential (which is usually neglected) significantly affects positions of metastable states.

Citation Download Citation

Alexei A. Buchachenko, T. Yu. Mikhailova, V. I. Pupyshev, and N. F. Stepanov "Application of the non-Hermitean effective Hamiltonian method to metastable van der Waals complexes", Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); https://doi.org/10.1117/12.267801

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