Niederhausen, ThomasThumm, Uwe2023-12-072023-12-072006-04-14https://hdl.handle.net/2097/43708We calculate electron capture and ionization probabilities for ion–atom collisions in a strong laser field (5×1013W/cm2) by numerically solving the three-dimensional time-dependent Schrödinger equation. For circularly polarized laser fields and an impact energy of 1.2keV∕amu, we find a substantial modification of the electronic dynamics in the H+–H collision system as compared to field-free collisions. In particular, we observe a strong dependence on the initial laser phase and the impact parameter for both capture and ionization, which can be explained using semiclassical arguments.© American Physical Society (APS). This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).http://rightsstatements.org/vocab/InC/1.0/https://web.archive.org/web/20181120135245/https://journals.aps.org/copyrightFAQ.htmlText