Chan-Paton soliton gauge states of the compactified open string

Jen-Chi Lee*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We study the mechanism of the enhanced gauge symmetry of the bosonic open string compactified on a torus by analyzing the zero-norm soliton (non-zero winding of the Wilson line) gauge states in the spectrum. Unlike the closed string case, we find that the soliton gauge state exists only at massive levels. These soliton gauge states correspond to the existence of enhanced massive gauge symmetries with transformation parameters containing both Einstein and Yang-Mills indices. In the T-dual picture, these symmetries exist only at some discrete values of compactified radii when N D-branes are coincident.

Original languageEnglish
Pages (from-to)695-697
Number of pages3
JournalEuropean Physical Journal C
Issue number4
StatePublished - 1 Jan 2000

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