Ivanov, IgorKheifets, AnatoliDubau, J2015-12-101434-6060http://hdl.handle.net/1885/67434We discuss the use of uncorrelated final state wave functions in calculations of double ionization processes. We show that in some physical situations such a simplified treatment can provide meaningful results. In particular, the prevalence of back-to-back emission in two-photon double ionization and even energy sharing between the photoelectrons make it possible to use uncorrelated final state wave functions for total integrated cross-section calculations.201110.1140/epjd/e2011-10496-62015-12-10