“School of Physics”
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| Paper IPM / P / 6539 |
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| Abstract: | |
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We consider the standard vector gauging of Lorentz group SO(3,1)
WZW model by
its non-semisimple null Euclidean subgroup in two dimensions E(2). The
resultant effective action of the theory is seen to describe a one-dimensional
bosonic field in the presence of external charge that we interpret as a
Liouville field. By gauging a boosted SO(3) subgroup, we find that in the
limit of the large boost, the theory can be intrepreted as an interacting Toda
theory. We take also the generalized nonstandard bilinear
form for SO(3,1) and gauge both SO(3) and E(2) subgroups and
discuss the resultant theories.
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