Ghost free dual vector theories in 2+1 dimensions
Nenhuma Miniatura disponível
Data
2006-01-01
Autores
Dalmazi, D.
Título da Revista
ISSN da Revista
Título de Volume
Editor
Int School Advanced Studies
Resumo
We explore here the issue of duality versus spectrum equivalence in dual theories generated through the master action approach. Specifically we examine a generalized self-dual (GSD) model where a Maxwell term is added to the self-dual model. A gauge embedding procedure applied to the GSD model leads to a Maxwell-Chern-Simons (MCS) theory with higher derivatives. We show here that the latter contains a ghost mode contrary to the original GSD model. By figuring out the origin of the ghost we are able to suggest a new master action which interpolates between the local GSD model and a nonlocal MCS model. Those models share the same spectrum and are ghost free. Furthermore, there is a dual map between both theories at classical level which survives quantum correlation functions up to contact terms. The remarks made here may be relevant for other applications of the master action approach.
Descrição
Palavras-chave
gauge symmetry, duality in gauge field theories, Chern-Simons theories
Como citar
Journal of High Energy Physics. Trieste: Int School Advanced Studies, n. 1, 11 p., 2006.