%0 Journal Article
%T Actions for the bosonic string with the curved worldsheet
%A Kamani
%A Davoud
%J Brazilian Journal of Physics
%D 2008
%I Scientific Electronic Library Online
%R 10.1590/S0103-97332008000200010
%X 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¨¦ 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.
%K curved worldsheet
%K 2d scalar curvature
%K poincar¨¦ symmetry.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-97332008000200010&lng=en&nrm=iso&tlng=en