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W$_{\infty}$ symmetry of the Nambu-Goto string in 4 dimensions
We consider a bosonic string propagating in 4--dim Minkowski space. We show that in the orthonormal gauge the classical system exhibits a hidden $W_{\infty}$ chiral symmetry, arising from the equivalence of its transverse modes with the $SU(2)/U(1)$ coset model defined on the string world--sheet. Ge...
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| Lenguaje: | eng |
| Publicado: |
1993
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| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)91751-8 http://cds.cern.ch/record/254635 |