Visualizing Picometric Quantum Ripples of Ultrafast Wave-Packet Interference

Author:

Katsuki Hiroyuki1234,Chiba Hisashi1234,Girard Bertrand1234,Meier Christoph1234,Ohmori Kenji1234

Affiliation:

1. Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan.

2. Core Research for Evolution of Science and Technology, Japan Science and Technology Agency, Japan.

3. The Graduate University for Advanced Studies (SOKENDAI), Myodaiji, Okazaki 444–8585, Japan.

4. Laboratoire Collisions, Agrégats, Réactivité, CNRS UMR 5589, Institut de Recherche sur les Systèmes Atomiques et Moléculaires Complexes, Université Paul Sabatier–Toulouse 3, France.

Abstract

Interference fringes in vibrating molecules are a signature of quantum mechanics, but are often so short-lived and closely spaced that they elude visualization. We have experimentally visualized dynamical quantum interferences, which appear and disappear in less than 100 femtoseconds in the iodine molecule synchronously with the periodic crossing of two counterpropagating nuclear wave packets. The obtained images have picometer and femtosecond spatiotemporal resolution, representing a detailed picture of the quantum interference.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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