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Showing 1–4 of 4 results
Advanced filters: Author: Yuval Shagam Clear advanced filters

  • In cold chemistry, quantum phenomena in reactants' translational motion lead to the temporary trapping of reactants in a collisional complex. It is now shown that this metastable complex is responsible for a dramatic quantum kinetic isotope effect as observed in Penning ionization reactions at low temperatures.

    • Etay Lavert-Ofir
    • Yuval Shagam
    • Edvardas Narevicius
    Research
    Nature Chemistry
    Volume: 6, P: 332-335

  • The lifetime of decaying quantum states has been thought to depend on the strength of the coupling causing the decay. Here the authors demonstrate that quantum mechanical interference can dominate this process, observing Fano-Feshbach resonance lifetimes covering several orders of magnitude.

    • Alexander Blech
    • Yuval Shagam
    • Christiane P. Koch
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-7

  • The rotational state of a molecule is not generally considered to play a role in how fast it reacts; however, when the temperature is low quantum effects become more important. Now, it is shown that at low temperatures rotationally excited H2 molecules react with He faster than non-rotating ground-state molecules — a process mediated by stronger long-range attraction.

    • Yuval Shagam
    • Ayelet Klein
    • Edvardas Narevicius
    Research
    Nature Chemistry
    Volume: 7, P: 921-926