October 06, 2004
Nobel Prize in Physics 2004 to Gross, Politzer, Wilczek
The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Physics for 2004 for the discovery of asymptotic freedom in the theory of the strong interaction jointly to David J. Gross (University of California, Santa Barbara, USA), H. David Politzer (California Institute of Technology, Pasadena, USA), and Frank Wilczek (Massachusetts Institute of Technology, Cambridge, USA). The interpretation of their mathematical result was that the closer the quarks are to each other, the weaker is the colour charge. When the quarks are really close to each other, the force is so weak that they behave almost as free particles. This phenomenon is called asymptotic freedom. The discovery was expressed in 1973 in an elegant mathematical framework that led to a completely new theory, Quantum ChromoDynamics, QCD.
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