Intramolecular vibrational energy redistribution as state space diffusion: classical-quantum correspondence.
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.
Semparithi
Aravindan
A
Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India.
Keshavamurthy
Srihari
S