Abstract
The evolution of a closed bosonic string in its massless background is considered. The target space local symmetries associated with the graviton and the two-form antisymmetric tensor are exposed through Ward identities using a path-integral formalism in the Hamiltonian phase space. Similar Ward identities are derived for nonabelian gauge bosons that appear as massless excitation of compactified strings. It is proposed that excited massive stringy states might be endowed with hidden local symmetries. We find evidence in support of this conjecture when we examine string evolution in the background of some of the low-lying massive states.
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Maharana, J. (2008). Novel Symmetries of String Theory. In: Gasperini, M., Maharana, J. (eds) String Theory and Fundamental Interactions. Lecture Notes in Physics, vol 737. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74233-3_16
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DOI: https://doi.org/10.1007/978-3-540-74233-3_16
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