Egil A. Hylleraas (1898–1965) — a pioneer of computational quantum mechanics

The Norwegian physicist Egil A. Hylleraas (1898–1965) helped usher in the era of scientific computing by carrying out accurate calculations on the helium atom, thereby confirming the validity of quantum mechanics for more than one particle (1929), by predicting the stability of the hydrogen anion, later detected in the Sun’s atmosphere (1930), and by performing the first calculation of the cohesive energy of a molecular crystal, LiH (1930). The methods and techniques introduced by Hylleraas in the 1920s and 1930s form the basis for modern high-accuracy calculations on molecular systems.

The slides for a talk on Egil Hylleraas by Trygve Helgaker (in Norwegian) can be found here.


Egil Andersen was born in 1898 in Hylleråsen, a small village near the Swedish border, 25 miles north of Trysil. 


Hylleraas invented a method that gives an accurate description of electrons in atoms and molecules. 


An exhibition about Hylleraas and his scientific contributions


Photos from the life of Hylleraas