Quenching of curve crossing probabilities by quantum reflection
When potential energy curves for the relative motion of two atoms in different electronic states cross, the probability for diabatic or adiabatic passage can be described by the Landau-Zener formula. For near-threshold energies, close to the asymptotic value of one of the curves, the corresponding velocity is very small at large separations. Then quantum reflection, which can prevent the atoms from coming close to the avoided crossing, becomes a dominating effect. The probabilities for...[Show more]
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|Source:||Radiation Physics and Chemistry|
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