From 1900 to 1906, Ladenburg studied at the Ruprecht-Karls-Universität Heidelberg, the Universität Breslau, and the Ludwig-Maximilians-Universität München. He received his doctorate under Wilhelm Röntgen at Munich.
Career
After completion of his Habilitation, Ladenburg became a Privatdozent at Breslau and in 1921 an ausserordentlicher Professor there. In 1924, he took an appointment at the Friedrich-Wilhelms-Universität along with becoming a scientific member of the Kaiser-Wilhelm Institut für physikalische Chemie und Elektrochemie of the Kaiser-Wilhelm Gesellschaft. Ladenburg went to the United States as early as 1930, where he became a Brackett Research Professor at the Palmer Physics Laboratory, Princeton University. When the emigration wave from Germany began in April 1933, Ladenburg was the principal coordinator for the employment of exiled physicists in the United States. He retired from Princeton in 1950.
Articles
Rudolf Ladenburg and Stanislaw Loria Nature, Anomalous Dispersion of Luminous Hydrogen Volume 79, 7-7
Rudolf Ladenburg Die quantentheoretische Bedeutung der Zahl der Dispersionelektronen, Z. Phys.Volume 4, Number 4, 451-468. Received on 8 February 1921. Institutional affiliation: Breslau, Physikal. Institut der Universität. English translation: The quantum-theoretical number of dispersion electrons in B. L. van der Waerden Sources of Quantum Mechanics pp. 139 – 157.
R. Ladenburg and F. Reiche Dispersionsgesetz und Bohrsche Atomtheorie, Die Naturwissenschaften , Volume 12, Issue 33, pp. 672-673
Hans Kopfermann and Rudolf Ladenburg Elektrooptische Untersuchungen am Natriumdampf. , Annalen der Physik, Volume 383, Issue 23, pp.659-679
Hans Kopfermann and Rudolf Ladenburg Untersuchungen über die anomale Dispersion angeregter Gase II Teil. Anomale Dispersion in angeregtem Neon Einfluß von Strom und Druck, Bildung und Vernichtung angeregter Atome, Zeitschrift für Physik Volume 48, Numbers 1-2, pp. 26-50. Received 17 December 1927. Institutional affiliation: Kaiser-Wilhelm Institut für physikalische Chemie und Elektrochemie, Berlin-Dahlem.
H. Kopfermann and R. Ladenburg Experimental Proof of ‘Negative Dispersion’, Nature Volume 122, 438-439
R. Ladenburg and S. Levy Untersuchungen über die anomale Dispersion angeregter Gase VI. Teil: Kontrollversuche für den Nachweis der negativen Dispersion: Absorption, anomale Dispersion, Intensitätsverteilung und Intensität verschiedener NeonlinienZeitschrift für Physik Volume 65, Numbers 3-4. pp. 189-206. Received 12 August 1930. Institutional affiliation: Kaiser-Wilhelm Institut für physikalische Chemie und Elektrochemie, Berlin-Dahlem.
Rudolf Ladenburg Dispersion in Electrically Excited GasesRev. Mod. Phys. Volume 5, 243 - 256. The author was cited as being at Princeton University.
Max Born, R. Fürth, and Rudolf Ladenburg Long Duration of the Balmer Spectrum in Hydrogen, Nature'' Volume 157, pp. 159-159. Institutional affiliations: Born and Fürth were identified as being in the Department of Mathematical Physics, The University, Edinburgh, and Ladenburg was identified as being in the Palmer Physical Laboratory, Princeton University, Princeton, New Jersey.
Books
Rudolf Walter Ladenburg Planck's elementares Wirkungsquantum und die Methoden zu seiner Messung