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Letter-0018 · Item · 1921/12/17
Part of Archives of Wolfgang Pauli

Heisenberg writes on the quantization of the outer electron of an atom on weak external magnetic fields and in increasing fields until the Paschen-Back-effect.

Heisenberg, Werner
Letter-0030 · Item · 1922/12/12
Part of Archives of Wolfgang Pauli

Heisenberg writes about the Einstein - de Haas effect, the failure of Bohr's theory of He, his own work with Born and about Lande's theory of multiplets.

Heisenberg, Werner
Letter-0094 · Item · 1925/06/29
Part of Archives of Wolfgang Pauli

Heisenberg corrects a mistake he made in an earlier letter to Pauli, where he wrote "Einkristall" but meant 'Kristallgitter". He claims that calculation of energy levels in the new quantum mechanics is completely fixed once the multiplication rule for Fourier series is accepted. He is convinced that the new quantum mechanics is correct.

Heisenberg, Werner