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Ing. Lubos Klouda
(FJFI CVUT)
WZW and Sine- Gordon models in string theory
Abstract:
String theory is a candidate for GUT. Its basics are generalization of
kinematics in general theory of relativity, the so called
sigma- models.
Invariance in quantum approach requires adding WZW term, which has its
importance also in nonquantum sigma- models.
The lecture comprises basic notions of sigma- models, WZW and
Sine- Gordon
models. The connection to other parts of mathematics are shown.
Gauging of
this models yields new models and conditions coming from physics, e.g.
Wittens conditions.
