CLASSICAL LIMIT OF THE DISTRIBUTION OF QUANTUM FLUCTUATIONS IN INTERMOLECULAR AND INTRAMOLECULAR DYNAMICS

Date Published:

MAR 2

Abstract:

A spectrum of final states can be produced in many ways; It can be a bound-bound process as in optical spectroscopy, a bound-continuum process as in photodissociation, or even a continuum-continuum transition as in a scattering experiment. A homogeneously broadened, resolved, spectrum exhibits variations in intensity which, while fully predictable by quantum dynamics, appear to the eye as `'fluctuations''. A phase space structure in which the statistical properties of such fluctuations can be examined is defined and discussed. In the classical limit, one recovers the results of `'surprisal analysis''. In the more general case, one obtains an extension to situations where quantal interference effects can be important.