I - 34151 Trieste Italy

*(+39) 040 2240 111*

*pio@ictp.it*

- Joint ICTP/SISSA PhD Programme in Physics and Mathematics
- Joint PhD Programme, Earth Science and Fluid Mechanics
- Physics PhD Program
- Joint Masters in Physics
- Joint ICTP/Collegio Carlo Alberto Program in Economics
- International Master, Physics of Complex Systems
- Master of Advanced Studies in Medical Physics
- Masters in High Performance Computing

- Home
- About ICTP
- Prizes & Awards
- The Dirac Medal
- The Medallists
- Dirac Medallist 1994

**Frank Wilczek**, Institute for Advanced Study,
Princeton, USA (at the time of the award)

for his contributions to the development of theoretical physics. In 1973 he was one of the discoverers of the phenomenon of "asymptotic freedom" in non-Abelian gauge theories. This fundamental observation - that the effective interaction at short distances becomes weak, even in strongly interacting systems - led to the development of a realistic model for hadron physics. In particular, it provided an explanation of scaling and its logarithmic corrections in hadron physics at high energies. Asymptotic freedom has become a cornerstone of the Standard Model of elementary particles and of the theoretical extensions of this model that aim to unify the fundamental forces.

Wilczek has also made important contributions to the study of particle-like excitations in 2-dimensional systems that obey "fractional statistics". These particles, for which he coined the name "anyons" are now recognized to have a role in phenomena such as the fractional quantum Hall effect.

Press articles [INTRANET ONLY]

ICTP is governed by UNESCO, IAEA, and Italy, and is a UNESCO Category 1 Institute

http://library.ictp.it/ejds.aspx