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Tunneling dynamics of one- and two-dimensional cubic oscillators with randomly fluctuating harmonic force constants: A numerical experiment

✍ Scribed by Pranab Sarkar; S. P. Bhattacharyya

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 175 KB
Volume: 64
Category: Article
ISSN: 0020-7608
DOI: 10.1002/(sici)1097-461x(1997)64:4<403::aid-qua2>3.0.co;2-#

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✦ Synopsis

The tunneling dynamics of one-and two-dimensional cubic oscillators Ž . having randomly fluctuating harmonic force constants K are studied numerically by t invoking the time-dependent Fourier grid Hamiltonian method. The influence of the frequency and strength of the fluctuation on the tunneling probability and tunneling rate is analyzed. The predicted nature of the influence depends upon whether the cubic oscillator is one-or two-dimensional. The possibility of mapping the proton-transfer systems onto the present model is explored.