Antti Juhani Niemi
Antti Juhani Niemi (* 1956 ) is a Finnish theoretical physicist.
Niemi received his PhD from the Massachusetts Institute of Technology in 1983 . As a post-doctoral student , he spent three years at the Institute for Advanced Study . He was an assistant professor at Ohio State University and visiting professor at the University of California, Berkeley (Lawrence Berkeley Laboratory), was a professor at the University of Helsinki (and director of the Institute of Particle Physics at the Helsinki University of Technology) and conducted research at CERN before he became a professor at Uppsala University . He has also been Research Director of the French CNRS in Tours since 2005 .
From 2003 to 2008 he was a part-time professor at the Chern Institute of Mathematics in Nankai. In 2012 he received a part-time professorship at the Beijing Institute of Technology.
In 1983 he and Gordon W. Semenoff discovered the quantum mechanical parity violation (parity anomaly ) of gauge theories with fermions in odd dimensions of space-time (and with an odd dual Coxeter number of the gauge group). A. Norman Redlich managed this independently. Niemi dealt with quantum field theory and solitons (node structures of solitons, with Ludwig Faddejew ). Later he dealt with protein folding.
He is a member of the Royal Swedish Academy of Sciences and received the Göran Gustafsson Prize in 1994.
Fonts (selection)
Except for the works cited in the footnotes.
- with Semenoff: Finite Temperature Quantum Field Theory in Minkowski Space, Annals of Physics, Volume 152, 1984, p. 105
- with Semenoff: Thermodynamic Calculations in Relativistic Finite Temperature Quantum Field Theories, Nuclear Physics B, Volume 230, 1984, p. 181
- with Semenoff: Quantum holonomy and the chiral gauge anomaly, Phys. Rev. Lett., Vol. 55, 1985, p. 927
- with Semenoff: Index theorems on open infinite manifolds, Nucl. Phys. B, Vol. 269, 1986, pp. 131-169
- with Semenoff: Fermion Number Fractionization in Quantum Field Theory, Physics Reports, Volume 135, 1986, p. 99
- with L. Faddeev : Stable knot-like structures in classical field theory, Nature, Volume 387, 1997, pp. 58-61 (at Arxiv under Knots and particles )
- with L. Faddeev: Partially dual variables in SU (2) Yang-Mills theory, Physical Review Letters, Volume 82, 1998, pp. 1624-1627
- with L. Faddeev: Partial duality in SU (N) Yang-Mills theory, Phys. Lett. B, Vol. 449, 1999, pp. 214-218
- with L. Faddeev: Decomposing the Yang-Mills field, Phys. Lett. B, Volume 464, 1999, pp. 90-93
- with E. Langmann: Towards a string representation of infrared SU (2) Yang-Mills theory, Physics Letters B, Volume 463, 1999, pp. 252-256
- with E. Babaev, L. Faddeev: Hidden symmetry and knot solitons in a charged two-condensate Bose system, Phys. Rev. B, Volume 65, 2001, pp. 100512 (R) -100515 (R)
- with L. Faddeev: Aspects of electric and magnetic variables in SU (2) Yang-Mills theory, Phys. Lett. B, Volume 535, 2002, pp. 195-200
- with L. Faddeev: Spin-charge separation, conformal covariance and the SU (2) Yang – Mills theory, Nuclear Physics B, Volume 776, 2007, pp. 38-65
Web links
Individual evidence
- ↑ Niemi, Semenoff, Axial-Anomaly-Induced Fermion Fractionization and Effective Gauge-Theory Actions in Odd-Dimensional Space-Times, Phys. Rev. Lett., Vol. 51, 1983, p. 2077, Abstract |
- ↑ Redlich, Gauge Noninvariance and Parity Nonconservation of Three-Dimensional Fermions, Phys. Rev. Lett., Vol. 52, 1984, p. 18, Abstract , Redlich, Parity violation and gauge noninvariance of the effective gauge field action in three dimensions, Phys. Rev. D, Vol. 29, 1984, p. 2366
| personal data | |
|---|---|
| SURNAME | Niemi, Antti Juhani |
| BRIEF DESCRIPTION | Finnish physicist |
| DATE OF BIRTH | 1956 |