Berlin: Springer, 1926. First edition of the explanation of the anomalous Zeeman effect on the basis of matrix mechanics. “By including the spin property of the electron, Heisenberg and Jordan obtained perhaps the greatest triumph of matrix mechanics: they were able to derive all observed phenomena connected with the anomalous..... More
Item #3528

Berlin: Julius Springer, 1922. First edition of Heisenberg’s first published paper, journal issue in original printed wrappers, describing his ‘core model’ of the atom and its application to solve the problems of the multiplet structure in atomic spectra and the anomalous Zeeman effect, which had defeated all previous attempts. “Just..... More
Item #3527

Berlin: Julius Springer, 1929-30. First edition, journal issues in original printed wrappers, of this two-part paper which represents the “formal invention of quantum electrodynamics [QED]” (Miller, p. xiii). “Three years before the discovery of the positron Heisenberg and Pauli – in two papers ‘Zur Quantenmechanik der Wellenfelder’ and ‘Zur Quantenmechanik..... More
Item #2627