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A: Fachverband Atomphysik

A 25: Attosecond physics

A 25.4: Poster

Mittwoch, 13. März 2019, 16:15–18:15, S Fobau Physik

Mapping laser-driven electron dynamics by a time independent Hamiltonian — •Soumi Dutta, Ulf Saalmann, and Jan-Michael Rost — Max Planck Institute for the Physics of Complex Systems, Dresden, Germany

We study the dynamics of an electron after tunnel ionization in the presence of a strong elliptically polarized laser field. The motion of the electron in the presence of an oscillatory electric field can be described by a smooth trajectory in the Kramers-Henneberger (KH) frame. In a series expansion of the time-averaged KH potential the zeroth-order contribution becomes dominant, implying a possible existence of a time independent potential governing the electron trajectory. We device a mapping from the KH initial conditions to reference initial conditions of simple Coulomb problem.