Actions for the Bosonic String with the Curved Worldsheet

Details Actions for the Bosonic String with the Curved Worldsheet Actions for the Bosonic String with the Curved Worldsheet

2007-04-05

arxiv.org/abs/0704.0752v3

Braz.J.Phys.38:268-271,2008

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, Latex, no figure, Some minor changes are introduced

Scientific paper

10.1590/S0103-97332008000200010

At first we introduce an action for the string, which leads to a worldsheet that always is curved. For this action we study the Poincar\'e symmetry and the associated conserved currents. Then, a generalization of the above action, which contains an arbitrary function of the two-dimensional scalar curvature, will be introduced. An extra scalar field enables us to modify these actions to Weyl invariant models.

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