John Cornwall
John Michael Cornwall (born August 19, 1934 in Denver , Colorado ) is an American theoretical physicist who studies elementary particle physics and quantum field theory, as well as geophysics and near space physics.
Cornwall graduated from Harvard University with a bachelor's degree in 1956 and the University of Denver with a master's degree in 1959. He received his doctorate in 1962 from the University of California, Berkeley . As a post-doctoral student he was at Caltech and from 1963 to 1965 at the Institute for Advanced Study . In 1965 he became an assistant professor and in 1974 a professor at the University of California, Los Angeles (UCLA).
Cornwall is primarily concerned with quantum chromodynamics (QCD), in which he developed non-perturbation-theoretic methods with which calibration-invariant off-shell Green functions can be obtained from the S-matrix (pinch technique, introduced by him in 1981). He applied this to the investigation of QCD and other Yang-Mills theories at high temperatures and in the early universe (magnetic monopoles, emergence of baryon asymmetry ).
Cornwall published in 1973 with Richard E. Norton one of the earliest works on dynamic symmetry breaking in Yang Mills theories. In addition, he deals with plasma physics in near space ( Van Allen Belt , Northern Lights).
He was an advisor to Miter Corporation and the Aerospace Corporation in El Segundo (1962–1993) and a member of the JASON Defense Advisory Group . He was on the National Security Advisory Committee of the Lawrence Livermore National Laboratory (from 1989), advisor to NASA (1975) and professor at the Graduate School of the RAND Corporation . Since 2002 he has been an advisor to the Center for Defense Information .
From 1967 to 1969 he was a Sloan Research Fellow and 1968/69 visiting scientist at the Niels Bohr Institute in Copenhagen. In 1987/88 he was visiting professor at the Massachusetts Institute of Technology and in 1989 at Rockefeller University .
He is a Fellow of the American Physical Society (2005), the New York Academy of Sciences , the American Geophysical Union, and the American Association for the Advancement of Science .
Fonts
- with Joannis Papavassiliou, Daniele Binosi: The pinch technique and applications to non-abelian gauge theories , Cambridge University Press 2011
Some essays:
- with Norton: On the formalism of relativistic many body theory, Annals of Physics, Volume 91, 1975, p. 106 doi: 10.1016 / 0003-4916 (75) 90281-X
- with Roman Jackiw , E. Tomboulis: "Effective action for composite operators", Physical Review D, Volume 10, 1974, pp. 2428-2445 doi: 10.1103 / PhysRevD.10.2428
- with G. Tiktopoulos: On-shell asymptotics of non-abelian gauge fields, Phys. Rev. Letters, Volume 35, 1975, p. 338 doi: 10.1103 / PhysRevLett.35.338
- with Tiktopoulos: Infrared Behavior of non-abelian gauge theories, Phys. Rev. D, Volume 13, 1976, pp. 3370-3397 doi: 10.1103 / PhysRevD.13.3370 , part 2, Phys. Rev. D, Volume 15, 1977, p. 2397 doi: 10.1103 / PhysRevD.15.2937
- Dynamical mass generation in continuum quantum chromodynamics, Phys. Rev. D, Volume 26, 1982, p. 1453 doi: 10.1103 / PhysRevD.26.1453
Web links
Individual evidence
- ^ Cornwall, Norton Spontaneous Symmetry breaking without scalar mesons , Phys. Rev. D, Vol. 8, 1973, pp. 3338-3346 (Part 2, Phys. Rev. D 10, 1974, p. 500). Independently in the same edition, Roman Jackiw , Kenneth A. Johnson Dynamical Model of Spontaneously Broken Gauge Symmetries , pp. 2386-2398
| personal data | |
|---|---|
| SURNAME | Cornwall, John |
| ALTERNATIVE NAMES | Cornwall, John Michael (full name) |
| BRIEF DESCRIPTION | American theoretical physicist |
| DATE OF BIRTH | August 19, 1934 |
| PLACE OF BIRTH | Denver , Colorado |