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PARTICLE PHYSICS AS REPRESENTATIONS OF THE POINCARE ALGEBRA.

Lars Brink (Institutionen för teoretisk fysik och mekanik, Elementarpartikelfysik)
Symposium Henri Poincare, Brussels 2004 (2005)
[Konferensbidrag, refereegranskat]

Eugene Wigner showed already in 1939 that the elementary particles are related to the irreducible representations of the Poincare algebra. In the light-cone frame formulation of quantum field theory one can extend these representations to depend also on a coupling constant. The representations then become non-linear and contain the interaction terms which are shown to have strong uniqueness. Extending the algebra to supersymmetry it is shown that two field theories stick out, N=4 Yang-Mills and N=8 Supergravity and their higher dimensional analogues. I also discuss string theory from this starting point.



Denna post skapades 2006-08-25.
CPL Pubid: 4764

 

Institutioner (Chalmers)

Institutionen för teoretisk fysik och mekanik, Elementarpartikelfysik (1900-2005)

Ämnesområden

Fysik

Chalmers infrastruktur