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Título:
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Physically meaningful and not so meaningful symmetries in Chern-Simons theory
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Autores:
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Ruiz Ruiz, Fernando ;
Martin, C.P. ;
Giavarini, G;
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Soc, 1993-06-15
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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We explicitly show that the Landau gauge supersymmetry of Chem-Simons theory does not have any physical significance. In fact, the difference between an effective action that is both Becchi-Rouet-Stora (BRS) invariant and Landau supersymmetric and an effective action that is only BRS invariant is a finite field redefinition. Having established this, we use a BRS-invariant regulator that defines CS theory as the large mass limit of topologically massive Yang-Mills theory to discuss the shift k-->k+c(v) of the bare Chern-Simons parameter k in connection with the Landau supersymmetry. Finally, to convince ourselves that the shift above is not an accident of our regularization method, we comment on the fact that all BRS-invariant regulators used as yet yield the same value for the shift.
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En línea:
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https://eprints.ucm.es/id/eprint/25353/1/Ruiz%20FR23libre.pdf
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