William Bardeen

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William Allan Bardeen (born September 15, 1941 in Washington , Pennsylvania) is an American theoretical physicist.

Bardeen is the son of John Bardeen, Nobel Prize in Physics . He graduated from Cornell University in 1962 and received his PhD from the University of Minnesota in 1968 . Afterwards he was at the State University of New York at Stony Brook and in 1968/9 at the Institute for Advanced Study in Princeton before becoming an assistant and then associate professor at Stanford University . From 1975 he was at the Fermi National Accelerator Laboratory (Fermilab), where he headed the theoretical department. In 1993/4 he was also head of the theoretical department of the planned Superconducting Super Collider (SSC) before it was discontinued. He was a visiting scientist a. a. at the Max Planck Institute for Physics and Astrophysics in Garching near Munich , at CERN , at the Tata Institute of Fundamental Research , at the University of Paris , the Institute of Theoretical Physics in Santa Barbara and at the Research Institute for Fundamental Physics in Kyoto .

Bardeen is best known for his work on anomalies (diagrams of the quantized theory that break the symmetry of the corresponding classical theory) in quantum field theory (QFT). He is one of the discoverers of the axial vector anomaly of fermion currents, which he treated as the first also for non-Abelian gauge theories and proved for these anomalies with Stephen Adler the non-existence of perturbative corrections (" Adler-Bardeen theorem "), whereby they showed the fundamental nature of these anomalies, which cannot be eliminated by higher-order diagrams. He also made important contributions to perturbation quantum chromodynamics and theories of the dynamic breaking of the symmetry of the electroweak interaction of the Standard Model and investigated theories with axions .

In 1985 he was a Guggenheim Fellow and in 1996 he received the Sakurai Prize . He was also a Sloan Research Fellow from 1971 to 1974 and received the Senior Scientist Award from the Alexander von Humboldt Foundation in 1977 . He has been a member of the American Academy of Arts and Sciences since 1998 and of the National Academy of Sciences since 1999 . In 2008 he was elected a Fellow of the American Association for the Advancement of Science . In 2002 he received an honorary doctorate from the University of Minnesota.

Bardeen is married and has two children. His brother James M. Bardeen is a professor of astrophysics at Washington University .

He has been married since 1961 and has a son and a daughter.

Web links

References and comments

  1. ↑ Date of birth September 15, according to his website, accessed June 4, 2010
  2. ^ Bardeen: Anomalous Ward identities in Spinor field theories . In: Physical Review . Volume 184, 1969, p. 1848
  3. ↑ the “anomalous” divergence of the axial vector current (chiral current) is given by an expression only from the calibration fields. If the chiral symmetry were preserved, the divergence of the axial flow would disappear.
  4. ↑ Stephen Adler, William Bardeen: Absence of higher order corrections in the anomalous Axial-Vector Divergence Equation. In: Physical Review. Volume 182, 1969, p. 1517
  5. ^ William A. Bardeen: Honorary Degree Recipient. University of Minnesota, accessed February 4, 2018 .
personal data
SURNAME Bardeen, William
ALTERNATIVE NAMES Bardeen, William Allan (full name)
BRIEF DESCRIPTION American physicist
DATE OF BIRTH September 15, 1941
PLACE OF BIRTH Washington , Pennsylvania