Joaquin Mazdak Luttinger

Joaquin Mazdak Luttinger, called Quin, ( born December 2, 1923 in New York City; † April 6, 1997 ) was an American theoretical physicist who worked on Vielteilchenproblemen in solid state physics.

Luttinger studied at the Massachusetts Institute of Technology, where he made ​​1942 a bachelor's degree and a doctorate in 1947 ( about antiferromagnetism ). As a post-doc, he went ( independently and simultaneously with Julian Schwinger ) as a Fellow of the National Research Council to Wolfgang Pauli in Zurich, where he with it, partially employed in collaboration with Res Jost, with quantum electrodynamics and 1948 calculated the anomalous magnetic moment of the electron. 1949/50, he served as Jewell Fellow at the Institute for Advanced Study. He was from 1950 to 1953 professor at the University of Wisconsin and after stopovers in 1953 at the University of Michigan and from 1958 at the University of Pennsylvania from 1960 professor at Columbia University, where he was from 1977 to 1980 Chairman of the Physics Department and in 1993 retired. He was in 1957/58 Visiting Professor at the Ecole Normale Superieure and 1967/68 and 1975/76 at the Rockefeller University in 1953 and until the 1970s a frequent guest scientist at the Bell Laboratories. He died from complications of his bone marrow cancer.

He is best known for introducing the Luttingerflüssigkeiten (one-dimensional interacting Fermi liquids, but behave differently from Landau Fermi liquids in three dimensions ) and his contributions to the theory of Fermi liquids, in particular on the grounds of the Landau theory of Fermi liquids He also treated the de Haas - van Alphen effect for interacting electrons .. the Luttinger theorem states that the area enclosed by the fermi surface volume of interacting electrons in an external potential depends only on the number of electrons, regardless of the interaction. With Kohn he showed superconductivity for fermion systems in three dimensions with repulsive interaction, which they demonstrated that superconductivity even without phonon interaction was possible.

He worked with Walter Kohn ( already in the 1950s at Bell Labs, their influential work on the theory of the effective mass of electrons in semiconductors contributed to the Bell Labs einrichtete a constant theory department ), Philippe Nozières, Philip W. Anderson John Clive Ward and Conyers Herring together.