Heisenberg writes about the Dirac-Jordan theory and Heisenberg's criticism of Bohr's objections.
Sans titreBohr agrees with Pauli and Jordan's attitude in their note on quantum electrodynamics. The apparently contradictory demands of superposition and individuality concern not opposing but complementary aspects of nature. Bohr also agrees with Pauli's criticism of de Broglie's work. Bohr has not been able to finish his note and is now working on his Como lecture in: Nat. suppl. : 121 (1928), pp .580 and in: Naturwissenschaften : 16 (1928)". He looks forward to see Pauli in Como.
Sans titreThis letter encloses a manuscript by Darwin. Bohr looks forward to meeting Pauli in Como.
Sans titrePauli is glad about the changes Bohr made in his manuscript, in particular about his explanation of complementarity. He looks forward to meeting him in Hamburg.
Sans titrePauli hopes that Kronig will accept the post of Pauli's assistant in Zürich.
Sans titrePauli writes Kronig that his appointment runs from May 1st until the end of the summer term.
Sans titrePauli asks if the last proofs of Bohr's paper are completed; if so, he would like to come to Copenhagen for some talks.
Sans titreHeisenberg continues his letter on ferromagnetism.
Sans titreHeisenberg replies to Pauli's questions about his letter on ferromagnetism: 1) on the magnetic moments of the atom residues, 2) the case of paramagnetism, 3) the calculation of the state-sum.
Sans titrePauli replies to a question from Bohr, whether an H-theorem can be derived from the point of view of quantum mechanics. He has made no progress in quantum electrodynamics and thinks that a completely new idea is still missing. He writes about Kronig's works and about Nature's introductory remark to Bohr's article.
Sans titre