Abstract Within the Hartree atomic unit systems, the Schrodinger equation becomes parameter free. But there s more to it than making a student s life easier, as Gordon Drake and Eite Tiesinga recount. Publication Details Author G. Drake E. Tiesinga Publication Type Journal Article Year of Publication 2020 Volume 16 Number of Pages 1242-1242 DOI 10.1038/s41567-020-01095-x Journal Nature Physics DOIGoogle Scholar Contributors Groups JQI Tiesinga Research Group