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Berni Alder

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Title: Berni Alder  
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Subject: List of California Institute of Technology people, UC Davis Department of Applied Science, Sterling B. Hendricks, Bert W. O'Malley, Ann Graybiel
Collection: 1925 Births, American Jews, American People of German-Jewish Descent, American People of Swiss-Jewish Descent, American Physicists, California Institute of Technology Alumni, Fellows of the American Academy of Arts and Sciences, German Jews, Guggenheim Fellows, Lawrence Livermore National Laboratory Staff, Living People, Members of the United States National Academy of Sciences, National Medal of Science Laureates, Scientific Computing Researchers, Swiss Emigrants to the United States, Swiss Jews, University of California, Berkeley Alumni, University of California, Berkeley College of Engineering Alumni, University of California, Berkeley Faculty, University of California, Davis Faculty
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Berni Alder

Berni Julian Alder
Born 1925
Residence United States
Nationality Swiss American
Institutions University of California at Berkeley
Lawrence Livermore National Laboratory
University of California at Davis
Alma mater University of California at Berkeley
California Institute of Technology
Doctoral advisor John Gamble Kirkwood
Known for molecular dynamics simulation
Notable awards Boltzmann Medal (2001)
National Medal of Science (2009)

Berni Julian Alder (born 1925 in Germany) is an American physicist specialized in statistical mechanics, and a pioneer of numerical simulation in physics.


Alder was born in Duisburg, Germany to Jewish parents, a chemist and a homemaker.[1] After the Nazis came to power, the family moved to Zurich, Switzerland. Fearing invasion by Nazi Germany after the outbreak of World War Two, the family applied for a visa to the United States, which was granted in 1941.[1] They left by sealed train from neutral Switzerland to (formally neutral) Spain, then to Portugal where they took a ship to the USA.[1] Following a stint in the US Navy after US entry into the war, he obtained a B.Sc. in Chemistry from the University of California at Berkeley and a master's degree in chemical engineering from the same institution in 1947. He went to the California Institute of Technology[1] to study under John Gamble Kirkwood for his PhD in 1948 and worked for the investigation of phase transitions in hard-sphere gas with Stan Frankel, where he got the idea to use the Monte Carlo method. After he finished at Caltech in 1952, he went to Berkeley and worked part-time at Berkeley to teach chemistry and part-time as a consultant under suggestion of Edward Teller in the nuclear weapons program for the Lawrence Livermore National Laboratory to help with the equations of state. In collaboration with Thomas Everett Wainwright, he developed techniques for molecular dynamics simulation in the mid-1950s, including the liquid-solid phase transition for hard sphere[2] and the velocity autocorrelations function decay in liquids.[3][4]

Alder, along with Teller, was one of the founders of the Department of Applied Science in 1963.[5] He was a professor of Applied Science at the University of California at Davis, and is now Professor Emeritus.

In 2001, he was awarded the Boltzmann Medal for inventing technique of molecular dynamics simulation.

He was elected a Fellow of the American Academy of Arts and Sciences in 2008.[6] In 2009, he was awarded the National Medal of Science.[7]

Alder was a Guggenheim Fellow. He was the editor of the book series Methods in Computational Physics and the founder of the magazine Computing.


  1. ^ a b c d "Interview with Berni J. Alder". CECAM. Retrieved 24 September 2014. 
  2. ^ B. J. Alder and T. E. Wainwright (1957). "Phase Transition for a Hard Sphere System". J. Chem. Phys. 27 (5): 1208.  
  3. ^ B. J. Alder and T. E. Wainwright (1962). "Phase Transition in Elastic Disks". Phys. Rev. 127 (2): 359–361.  
  4. ^ B. J. Alder and T. E. Wainwright (1970). "Decay of the Velocity Autocorrelation Function". Phys. Rev. A 1 (1): 18–21.  
  5. ^ "UCD professor emeritus to receive National Medal of Science at White House next month". Davis Enterprise. September 22, 2009. Retrieved January 13, 2013. 
  6. ^ "Book of Members, 1780-2010: Chapter A". American Academy of Arts and Sciences. Retrieved 14 April 2011. 
  7. ^ "Berni Alder receives National Medal of Science". Lawrence Livermore National Laboratory. 2009-09-18. Retrieved 2010-02-12. 

External links

  • An Interview with Bernie Alder by George Michael, Stories of the Development of Large Scale Scientific Computing at Lawrence Livermore National Laboratory
  • Berni J. Alder CECAM Prize
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