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Published August 6, 1999 | public
Journal Article

The concept of coherent resonances in the nuclear motion of bimolecular collisions: femtosecond probing and the classical picture

Abstract

In this Letter, we report studies of coherent resonances in the course of a single bimolecular collision on the femtosecond timescale. A classical picture is presented with molecular dynamics simulations. The observed persistence of coherence elucidates the origin of the very limited spreading of the wavepacket and the crucial role of selective probing of a limited range of impact parameters. The study of this three-body system (iodine and argon) at room temperature is important for the mechanism of resonances and caging with implications for the condensed phase.

Additional Information

© 1999 Elsevier Science B.V. Received 31 May 1999; in final form 14 June 1999. This work was supported by the National Science Foundation, the Office of Naval Research, and US AFOSR. KBM acknowledges the Carlsberg Foundation of Denmark for a generous fellowship. AHZ would like to thank Professor Angel González Ureña for his hospitality and interesting discussions on resonances in general. It is also a pleasure to acknowledge helpful discussions with Dr. J.S. Baskin and the thorough reading of the manuscript by Professor Vince McKoy.

Additional details

Created:
August 19, 2023
Modified:
October 20, 2023