Quantum dynamics of OCS molecule doped in superfluid 4He nanodroplet

preprint2011arXivOpen access

Abstract

In this paper, we explain the change of rotational constant (B) and vibrational frequency shift of 4HeN-OCS clusters with N by using important inferences of Macro-Orbital theory of superfluidity and several other factors that can change B and vibrational frequency. Consequently, this helps us in understanding the extra ordinary experimental observations that (i) B decreases monotonically from N = 1 to 9 and rises thereafter to follow broad oscillations with maxima at N = 24, 47 and minima at 36 and 62 and (ii) vibrational frequency shift has blue shift for N ~ 1 - 6, with steady red shift thereafter having a change in slope at N ~ 17.

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