Intramolecular vibrational energy redistribution as state space diffusion: classical-quantum correspondence |
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Authors: | Semparithi Aravindan Keshavamurthy Srihari |
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Institution: | Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India. |
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Abstract: | We study the intramolecular vibrational energy redistribution (IVR) dynamics of an effective spectroscopic Hamiltonian describing the four coupled high frequency modes of CDBrClF. The IVR dynamics ensuing from nearly isoenergetic zeroth-order states, an edge (overtone) and an interior (combination) state, is studied from a state space diffusion perspective. A wavelet based time-frequency analysis reveals an inhomogeneous phase space due to the trapping of classical trajectories. Consequently the interior state has a smaller effective IVR dimension as compared to the edge state. |
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