Electric-field induced helium-helium resonances
Abstract
The tunability of the helium-helium interaction through an external electric field is investigated. For a static external field, electric-field induced resonances and associated electric-field induced bound states are calculated for the 4He-4He, 3He-4He, and 3He-3He systems. Qualitative agreement is found with the literature for the 3He-4He and 3He-3He systems [E. Nielsen, D. V. Fedorov, and A. S. Jensen, Phys. Rev. Lett. 82, 2844 (1999)]. The implications of the predicted electric-field induced resonances for 4He-4He on the wave packet dynamics, initiated by intense laser pulses, are investigated. Our results are expected to guide next generation experiments.
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